39980175

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31357}}^1$

素因数の和:31387

約数の個数: 24

約数和(自身を含む): 69991056

約数和(自身を除く): 30010881

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 31357, 94071, 156785, 470355, 533069, 783925, 1599207, 2351775, 2665345, 7996035, 13326725, 39980175]

約数ペア:

[(1, 39980175), (3, 13326725), (5, 7996035), (15, 2665345), (17, 2351775), (25, 1599207), (51, 783925), (75, 533069), (85, 470355), (255, 156785), (425, 94071), (1275, 31357)]