20856000

素因数分解:

$2^6\times 3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1$

素因数の和:120

約数の個数: 224

約数和(自身を含む): 76078080

約数和(自身を除く): 55222080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 32, 33, 40, 44, 48, 50, 55, 60, 64, 66, 75, 79, 80, 88, 96, 100, 110, 120, 125, 132, 150, 158, 160, 165, 176, 192, 200, 220, 237, 240, 250, 264, 275, 300, 316, 320, 330, 352, 375, 395, 400, 440, 474, 480, 500, 528, 550, 600, 632, 660, 704, 750, 790, 800, 825, 869, 880, 948, 960, 1000, 1056, 1100, 1185, 1200, 1264, 1320, 1375, 1500, 1580, 1600, 1650, 1738, 1760, 1896, 1975, 2000, 2112, 2200, 2370, 2400, 2528, 2607, 2640, 2750, 3000, 3160, 3300, 3476, 3520, 3792, 3950, 4000, 4125, 4345, 4400, 4740, 4800, 5056, 5214, 5280, 5500, 5925, 6000, 6320, 6600, 6952, 7584, 7900, 8000, 8250, 8690, 8800, 9480, 9875, 10428, 10560, 11000, 11850, 12000, 12640, 13035, 13200, 13904, 15168, 15800, 16500, 17380, 17600, 18960, 19750, 20856, 21725, 22000, 23700, 24000, 25280, 26070, 26400, 27808, 29625, 31600, 33000, 34760, 37920, 39500, 41712, 43450, 44000, 47400, 52140, 52800, 55616, 59250, 63200, 65175, 66000, 69520, 75840, 79000, 83424, 86900, 88000, 94800, 104280, 108625, 118500, 126400, 130350, 132000, 139040, 158000, 166848, 173800, 189600, 208560, 217250, 237000, 260700, 264000, 278080, 316000, 325875, 347600, 379200, 417120, 434500, 474000, 521400, 632000, 651750, 695200, 834240, 869000, 948000, 1042800, 1303500, 1390400, 1738000, 1896000, 2085600, 2607000, 3476000, 4171200, 5214000, 6952000, 10428000, 20856000]

約数ペア:

[(1, 20856000), (2, 10428000), (3, 6952000), (4, 5214000), (5, 4171200), (6, 3476000), (8, 2607000), (10, 2085600), (11, 1896000), (12, 1738000), (15, 1390400), (16, 1303500), (20, 1042800), (22, 948000), (24, 869000), (25, 834240), (30, 695200), (32, 651750), (33, 632000), (40, 521400), (44, 474000), (48, 434500), (50, 417120), (55, 379200), (60, 347600), (64, 325875), (66, 316000), (75, 278080), (79, 264000), (80, 260700), (88, 237000), (96, 217250), (100, 208560), (110, 189600), (120, 173800), (125, 166848), (132, 158000), (150, 139040), (158, 132000), (160, 130350), (165, 126400), (176, 118500), (192, 108625), (200, 104280), (220, 94800), (237, 88000), (240, 86900), (250, 83424), (264, 79000), (275, 75840), (300, 69520), (316, 66000), (320, 65175), (330, 63200), (352, 59250), (375, 55616), (395, 52800), (400, 52140), (440, 47400), (474, 44000), (480, 43450), (500, 41712), (528, 39500), (550, 37920), (600, 34760), (632, 33000), (660, 31600), (704, 29625), (750, 27808), (790, 26400), (800, 26070), (825, 25280), (869, 24000), (880, 23700), (948, 22000), (960, 21725), (1000, 20856), (1056, 19750), (1100, 18960), (1185, 17600), (1200, 17380), (1264, 16500), (1320, 15800), (1375, 15168), (1500, 13904), (1580, 13200), (1600, 13035), (1650, 12640), (1738, 12000), (1760, 11850), (1896, 11000), (1975, 10560), (2000, 10428), (2112, 9875), (2200, 9480), (2370, 8800), (2400, 8690), (2528, 8250), (2607, 8000), (2640, 7900), (2750, 7584), (3000, 6952), (3160, 6600), (3300, 6320), (3476, 6000), (3520, 5925), (3792, 5500), (3950, 5280), (4000, 5214), (4125, 5056), (4345, 4800), (4400, 4740)]