87749980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{4357}}^1$

素因数の和:4438

約数の個数: 48

約数和(自身を含む): 197678880

約数和(自身を除く): 109928900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 2014, 4028, 4357, 5035, 8714, 10070, 17428, 20140, 21785, 43570, 82783, 87140, 165566, 230921, 331132, 413915, 461842, 827830, 923684, 1154605, 1655660, 2309210, 4387499, 4618420, 8774998, 17549996, 21937495, 43874990, 87749980]

約数ペア:

[(1, 87749980), (2, 43874990), (4, 21937495), (5, 17549996), (10, 8774998), (19, 4618420), (20, 4387499), (38, 2309210), (53, 1655660), (76, 1154605), (95, 923684), (106, 827830), (190, 461842), (212, 413915), (265, 331132), (380, 230921), (530, 165566), (1007, 87140), (1060, 82783), (2014, 43570), (4028, 21785), (4357, 20140), (5035, 17428), (8714, 10070)]