71696320

素因数分解:

$2^6\times 5^1\times {\mathrm{449}}^1\times {\mathrm{499}}^1$

素因数の和:965

約数の個数: 56

約数和(自身を含む): 171450000

約数和(自身を除く): 99753680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 449, 499, 898, 998, 1796, 1996, 2245, 2495, 3592, 3992, 4490, 4990, 7184, 7984, 8980, 9980, 14368, 15968, 17960, 19960, 28736, 31936, 35920, 39920, 71840, 79840, 143680, 159680, 224051, 448102, 896204, 1120255, 1792408, 2240510, 3584816, 4481020, 7169632, 8962040, 14339264, 17924080, 35848160, 71696320]

約数ペア:

[(1, 71696320), (2, 35848160), (4, 17924080), (5, 14339264), (8, 8962040), (10, 7169632), (16, 4481020), (20, 3584816), (32, 2240510), (40, 1792408), (64, 1120255), (80, 896204), (160, 448102), (320, 224051), (449, 159680), (499, 143680), (898, 79840), (998, 71840), (1796, 39920), (1996, 35920), (2245, 31936), (2495, 28736), (3592, 19960), (3992, 17960), (4490, 15968), (4990, 14368), (7184, 9980), (7984, 8980)]