72478990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{617}}^1\times {\mathrm{691}}^1$

素因数の和:1332

約数の個数: 32

約数和(自身を含む): 138560544

約数和(自身を除く): 66081554

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 617, 691, 1234, 1382, 3085, 3455, 6170, 6910, 10489, 11747, 20978, 23494, 52445, 58735, 104890, 117470, 426347, 852694, 2131735, 4263470, 7247899, 14495798, 36239495, 72478990]

約数ペア:

[(1, 72478990), (2, 36239495), (5, 14495798), (10, 7247899), (17, 4263470), (34, 2131735), (85, 852694), (170, 426347), (617, 117470), (691, 104890), (1234, 58735), (1382, 52445), (3085, 23494), (3455, 20978), (6170, 11747), (6910, 10489)]