81538970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{1637}}^1$

素因数の和:1954

約数の個数: 32

約数和(自身を含む): 156029328

約数和(自身を除く): 74490358

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 293, 586, 1465, 1637, 2930, 3274, 4981, 8185, 9962, 16370, 24905, 27829, 49810, 55658, 139145, 278290, 479641, 959282, 2398205, 4796410, 8153897, 16307794, 40769485, 81538970]

約数ペア:

[(1, 81538970), (2, 40769485), (5, 16307794), (10, 8153897), (17, 4796410), (34, 2398205), (85, 959282), (170, 479641), (293, 278290), (586, 139145), (1465, 55658), (1637, 49810), (2930, 27829), (3274, 24905), (4981, 16370), (8185, 9962)]