21964560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1289}}^1$

素因数の和:1376

約数の個数: 80

約数和(自身を含む): 69102720

約数和(自身を除く): 47138160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1289, 1420, 1704, 2130, 2578, 2840, 3408, 3867, 4260, 5156, 5680, 6445, 7734, 8520, 10312, 12890, 15468, 17040, 19335, 20624, 25780, 30936, 38670, 51560, 61872, 77340, 91519, 103120, 154680, 183038, 274557, 309360, 366076, 457595, 549114, 732152, 915190, 1098228, 1372785, 1464304, 1830380, 2196456, 2745570, 3660760, 4392912, 5491140, 7321520, 10982280, 21964560]

約数ペア:

[(1, 21964560), (2, 10982280), (3, 7321520), (4, 5491140), (5, 4392912), (6, 3660760), (8, 2745570), (10, 2196456), (12, 1830380), (15, 1464304), (16, 1372785), (20, 1098228), (24, 915190), (30, 732152), (40, 549114), (48, 457595), (60, 366076), (71, 309360), (80, 274557), (120, 183038), (142, 154680), (213, 103120), (240, 91519), (284, 77340), (355, 61872), (426, 51560), (568, 38670), (710, 30936), (852, 25780), (1065, 20624), (1136, 19335), (1289, 17040), (1420, 15468), (1704, 12890), (2130, 10312), (2578, 8520), (2840, 7734), (3408, 6445), (3867, 5680), (4260, 5156)]