64984825

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1105

約数の個数: 24

約数和(自身を含む): 83891456

約数和(自身を除く): 18906631

約数列:

[1, 5, 25, 43, 61, 215, 305, 991, 1075, 1525, 2623, 4955, 13115, 24775, 42613, 60451, 65575, 213065, 302255, 1065325, 1511275, 2599393, 12996965, 64984825]

約数ペア:

[(1, 64984825), (5, 12996965), (25, 2599393), (43, 1511275), (61, 1065325), (215, 302255), (305, 213065), (991, 65575), (1075, 60451), (1525, 42613), (2623, 24775), (4955, 13115)]