71781125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:462

約数の個数: 32

約数和(自身を含む): 97423872

約数和(自身を除く): 25642747

約数列:

[1, 5, 13, 25, 65, 125, 163, 271, 325, 815, 1355, 1625, 2119, 3523, 4075, 6775, 10595, 17615, 20375, 33875, 44173, 52975, 88075, 220865, 264875, 440375, 574249, 1104325, 2871245, 5521625, 14356225, 71781125]

約数ペア:

[(1, 71781125), (5, 14356225), (13, 5521625), (25, 2871245), (65, 1104325), (125, 574249), (163, 440375), (271, 264875), (325, 220865), (815, 88075), (1355, 52975), (1625, 44173), (2119, 33875), (3523, 20375), (4075, 17615), (6775, 10595)]