21000928000

素因数分解:

$2^8\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2657}}^1$

素因数の和:2720

約数の個数: 288

約数和(自身を含む): 59327835840

約数和(自身を除く): 38326907840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 32, 38, 40, 50, 52, 64, 65, 76, 80, 95, 100, 104, 125, 128, 130, 152, 160, 190, 200, 208, 247, 250, 256, 260, 304, 320, 325, 380, 400, 416, 475, 494, 500, 520, 608, 640, 650, 760, 800, 832, 950, 988, 1000, 1040, 1216, 1235, 1280, 1300, 1520, 1600, 1625, 1664, 1900, 1976, 2000, 2080, 2375, 2432, 2470, 2600, 2657, 3040, 3200, 3250, 3328, 3800, 3952, 4000, 4160, 4750, 4864, 4940, 5200, 5314, 6080, 6175, 6400, 6500, 7600, 7904, 8000, 8320, 9500, 9880, 10400, 10628, 12160, 12350, 13000, 13285, 15200, 15808, 16000, 16640, 19000, 19760, 20800, 21256, 24320, 24700, 26000, 26570, 30400, 30875, 31616, 32000, 34541, 38000, 39520, 41600, 42512, 49400, 50483, 52000, 53140, 60800, 61750, 63232, 66425, 69082, 76000, 79040, 83200, 85024, 98800, 100966, 104000, 106280, 121600, 123500, 132850, 138164, 152000, 158080, 170048, 172705, 197600, 201932, 208000, 212560, 247000, 252415, 265700, 276328, 304000, 316160, 332125, 340096, 345410, 395200, 403864, 416000, 425120, 494000, 504830, 531400, 552656, 608000, 656279, 664250, 680192, 690820, 790400, 807728, 850240, 863525, 988000, 1009660, 1062800, 1105312, 1262075, 1312558, 1328500, 1381640, 1580800, 1615456, 1700480, 1727050, 1976000, 2019320, 2125600, 2210624, 2524150, 2625116, 2657000, 2763280, 3230912, 3281395, 3400960, 3454100, 3952000, 4038640, 4251200, 4317625, 4421248, 5048300, 5250232, 5314000, 5526560, 6310375, 6461824, 6562790, 6908200, 7904000, 8077280, 8502400, 8635250, 8842496, 10096600, 10500464, 10628000, 11053120, 12620750, 12923648, 13125580, 13816400, 16154560, 16406975, 17004800, 17270500, 20193200, 21000928, 21256000, 22106240, 25241500, 26251160, 27632800, 32309120, 32813950, 34541000, 40386400, 42001856, 42512000, 44212480, 50483000, 52502320, 55265600, 64618240, 65627900, 69082000, 80772800, 82034875, 84003712, 85024000, 100966000, 105004640, 110531200, 131255800, 138164000, 161545600, 164069750, 168007424, 201932000, 210009280, 221062400, 262511600, 276328000, 323091200, 328139500, 403864000, 420018560, 525023200, 552656000, 656279000, 807728000, 840037120, 1050046400, 1105312000, 1312558000, 1615456000, 2100092800, 2625116000, 4200185600, 5250232000, 10500464000, 21000928000]

約数ペア:

[(1, 21000928000), (2, 10500464000), (4, 5250232000), (5, 4200185600), (8, 2625116000), (10, 2100092800), (13, 1615456000), (16, 1312558000), (19, 1105312000), (20, 1050046400), (25, 840037120), (26, 807728000), (32, 656279000), (38, 552656000), (40, 525023200), (50, 420018560), (52, 403864000), (64, 328139500), (65, 323091200), (76, 276328000), (80, 262511600), (95, 221062400), (100, 210009280), (104, 201932000), (125, 168007424), (128, 164069750), (130, 161545600), (152, 138164000), (160, 131255800), (190, 110531200), (200, 105004640), (208, 100966000), (247, 85024000), (250, 84003712), (256, 82034875), (260, 80772800), (304, 69082000), (320, 65627900), (325, 64618240), (380, 55265600), (400, 52502320), (416, 50483000), (475, 44212480), (494, 42512000), (500, 42001856), (520, 40386400), (608, 34541000), (640, 32813950), (650, 32309120), (760, 27632800), (800, 26251160), (832, 25241500), (950, 22106240), (988, 21256000), (1000, 21000928), (1040, 20193200), (1216, 17270500), (1235, 17004800), (1280, 16406975), (1300, 16154560), (1520, 13816400), (1600, 13125580), (1625, 12923648), (1664, 12620750), (1900, 11053120), (1976, 10628000), (2000, 10500464), (2080, 10096600), (2375, 8842496), (2432, 8635250), (2470, 8502400), (2600, 8077280), (2657, 7904000), (3040, 6908200), (3200, 6562790), (3250, 6461824), (3328, 6310375), (3800, 5526560), (3952, 5314000), (4000, 5250232), (4160, 5048300), (4750, 4421248), (4864, 4317625), (4940, 4251200), (5200, 4038640), (5314, 3952000), (6080, 3454100), (6175, 3400960), (6400, 3281395), (6500, 3230912), (7600, 2763280), (7904, 2657000), (8000, 2625116), (8320, 2524150), (9500, 2210624), (9880, 2125600), (10400, 2019320), (10628, 1976000), (12160, 1727050), (12350, 1700480), (13000, 1615456), (13285, 1580800), (15200, 1381640), (15808, 1328500), (16000, 1312558), (16640, 1262075), (19000, 1105312), (19760, 1062800), (20800, 1009660), (21256, 988000), (24320, 863525), (24700, 850240), (26000, 807728), (26570, 790400), (30400, 690820), (30875, 680192), (31616, 664250), (32000, 656279), (34541, 608000), (38000, 552656), (39520, 531400), (41600, 504830), (42512, 494000), (49400, 425120), (50483, 416000), (52000, 403864), (53140, 395200), (60800, 345410), (61750, 340096), (63232, 332125), (66425, 316160), (69082, 304000), (76000, 276328), (79040, 265700), (83200, 252415), (85024, 247000), (98800, 212560), (100966, 208000), (104000, 201932), (106280, 197600), (121600, 172705), (123500, 170048), (132850, 158080), (138164, 152000)]