399380800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{211}}^1$

素因数の和:266

約数の個数: 252

約数和(自身を含む): 1221918816

約数和(自身を除く): 822538016

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 64, 65, 70, 80, 91, 100, 104, 112, 130, 140, 160, 169, 175, 182, 200, 208, 211, 224, 260, 280, 320, 325, 338, 350, 364, 400, 416, 422, 448, 455, 520, 560, 650, 676, 700, 728, 800, 832, 844, 845, 910, 1040, 1055, 1120, 1183, 1300, 1352, 1400, 1456, 1477, 1600, 1688, 1690, 1820, 2080, 2110, 2240, 2275, 2366, 2600, 2704, 2743, 2800, 2912, 2954, 3376, 3380, 3640, 4160, 4220, 4225, 4550, 4732, 5200, 5275, 5408, 5486, 5600, 5824, 5908, 5915, 6752, 6760, 7280, 7385, 8440, 8450, 9100, 9464, 10400, 10550, 10816, 10972, 11200, 11816, 11830, 13504, 13520, 13715, 14560, 14770, 16880, 16900, 18200, 18928, 19201, 20800, 21100, 21944, 23632, 23660, 27040, 27430, 29120, 29540, 29575, 33760, 33800, 35659, 36400, 36925, 37856, 38402, 42200, 43888, 47264, 47320, 54080, 54860, 59080, 59150, 67520, 67600, 68575, 71318, 72800, 73850, 75712, 76804, 84400, 87776, 94528, 94640, 96005, 109720, 118160, 118300, 135200, 137150, 142636, 145600, 147700, 153608, 168800, 175552, 178295, 189280, 192010, 219440, 236320, 236600, 249613, 270400, 274300, 285272, 295400, 307216, 337600, 356590, 378560, 384020, 438880, 472640, 473200, 480025, 499226, 548600, 570544, 590800, 614432, 713180, 768040, 877760, 891475, 946400, 960050, 998452, 1097200, 1141088, 1181600, 1228864, 1248065, 1426360, 1536080, 1782950, 1892800, 1920100, 1996904, 2194400, 2282176, 2363200, 2496130, 2852720, 3072160, 3565900, 3840200, 3993808, 4388800, 4992260, 5705440, 6144320, 6240325, 7131800, 7680400, 7987616, 9984520, 11410880, 12480650, 14263600, 15360800, 15975232, 19969040, 24961300, 28527200, 30721600, 39938080, 49922600, 57054400, 79876160, 99845200, 199690400, 399380800]

約数ペア:

[(1, 399380800), (2, 199690400), (4, 99845200), (5, 79876160), (7, 57054400), (8, 49922600), (10, 39938080), (13, 30721600), (14, 28527200), (16, 24961300), (20, 19969040), (25, 15975232), (26, 15360800), (28, 14263600), (32, 12480650), (35, 11410880), (40, 9984520), (50, 7987616), (52, 7680400), (56, 7131800), (64, 6240325), (65, 6144320), (70, 5705440), (80, 4992260), (91, 4388800), (100, 3993808), (104, 3840200), (112, 3565900), (130, 3072160), (140, 2852720), (160, 2496130), (169, 2363200), (175, 2282176), (182, 2194400), (200, 1996904), (208, 1920100), (211, 1892800), (224, 1782950), (260, 1536080), (280, 1426360), (320, 1248065), (325, 1228864), (338, 1181600), (350, 1141088), (364, 1097200), (400, 998452), (416, 960050), (422, 946400), (448, 891475), (455, 877760), (520, 768040), (560, 713180), (650, 614432), (676, 590800), (700, 570544), (728, 548600), (800, 499226), (832, 480025), (844, 473200), (845, 472640), (910, 438880), (1040, 384020), (1055, 378560), (1120, 356590), (1183, 337600), (1300, 307216), (1352, 295400), (1400, 285272), (1456, 274300), (1477, 270400), (1600, 249613), (1688, 236600), (1690, 236320), (1820, 219440), (2080, 192010), (2110, 189280), (2240, 178295), (2275, 175552), (2366, 168800), (2600, 153608), (2704, 147700), (2743, 145600), (2800, 142636), (2912, 137150), (2954, 135200), (3376, 118300), (3380, 118160), (3640, 109720), (4160, 96005), (4220, 94640), (4225, 94528), (4550, 87776), (4732, 84400), (5200, 76804), (5275, 75712), (5408, 73850), (5486, 72800), (5600, 71318), (5824, 68575), (5908, 67600), (5915, 67520), (6752, 59150), (6760, 59080), (7280, 54860), (7385, 54080), (8440, 47320), (8450, 47264), (9100, 43888), (9464, 42200), (10400, 38402), (10550, 37856), (10816, 36925), (10972, 36400), (11200, 35659), (11816, 33800), (11830, 33760), (13504, 29575), (13520, 29540), (13715, 29120), (14560, 27430), (14770, 27040), (16880, 23660), (16900, 23632), (18200, 21944), (18928, 21100), (19201, 20800)]