20376625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 27675648

約数和(自身を除く): 7299023

約数列:

[1, 5, 17, 25, 43, 85, 125, 215, 223, 425, 731, 1075, 1115, 2125, 3655, 3791, 5375, 5575, 9589, 18275, 18955, 27875, 47945, 91375, 94775, 163013, 239725, 473875, 815065, 1198625, 4075325, 20376625]

約数ペア:

[(1, 20376625), (5, 4075325), (17, 1198625), (25, 815065), (43, 473875), (85, 239725), (125, 163013), (215, 94775), (223, 91375), (425, 47945), (731, 27875), (1075, 18955), (1115, 18275), (2125, 9589), (3655, 5575), (3791, 5375)]