291369620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{8867}}^1$

素因数の和:8960

約数の個数: 48

約数和(自身を含む): 643603968

約数和(自身を除く): 352234348

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 620, 1060, 1643, 3286, 6572, 8215, 8867, 16430, 17734, 32860, 35468, 44335, 88670, 177340, 274877, 469951, 549754, 939902, 1099508, 1374385, 1879804, 2349755, 2748770, 4699510, 5497540, 9399020, 14568481, 29136962, 58273924, 72842405, 145684810, 291369620]

約数ペア:

[(1, 291369620), (2, 145684810), (4, 72842405), (5, 58273924), (10, 29136962), (20, 14568481), (31, 9399020), (53, 5497540), (62, 4699510), (106, 2748770), (124, 2349755), (155, 1879804), (212, 1374385), (265, 1099508), (310, 939902), (530, 549754), (620, 469951), (1060, 274877), (1643, 177340), (3286, 88670), (6572, 44335), (8215, 35468), (8867, 32860), (16430, 17734)]