71958640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{69191}}^1$

素因数の和:69217

約数の個数: 40

約数和(自身を含む): 180175968

約数和(自身を除く): 108217328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 69191, 138382, 276764, 345955, 553528, 691910, 899483, 1107056, 1383820, 1798966, 2767640, 3597932, 4497415, 5535280, 7195864, 8994830, 14391728, 17989660, 35979320, 71958640]

約数ペア:

[(1, 71958640), (2, 35979320), (4, 17989660), (5, 14391728), (8, 8994830), (10, 7195864), (13, 5535280), (16, 4497415), (20, 3597932), (26, 2767640), (40, 1798966), (52, 1383820), (65, 1107056), (80, 899483), (104, 691910), (130, 553528), (208, 345955), (260, 276764), (520, 138382), (1040, 69191)]