40481675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{431}}^1$

素因数の和:488

約数の個数: 36

約数和(自身を含む): 57558816

約数和(自身を除く): 17077141

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 289, 325, 425, 431, 1105, 1445, 2155, 3757, 5525, 5603, 7225, 7327, 10775, 18785, 28015, 36635, 93925, 95251, 124559, 140075, 183175, 476255, 622795, 1619267, 2381275, 3113975, 8096335, 40481675]

約数ペア:

[(1, 40481675), (5, 8096335), (13, 3113975), (17, 2381275), (25, 1619267), (65, 622795), (85, 476255), (221, 183175), (289, 140075), (325, 124559), (425, 95251), (431, 93925), (1105, 36635), (1445, 28015), (2155, 18785), (3757, 10775), (5525, 7327), (5603, 7225)]