12155725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 16065440

約数和(自身を除く): 3909715

約数列:

[1, 5, 19, 25, 95, 157, 163, 475, 785, 815, 2983, 3097, 3925, 4075, 14915, 15485, 25591, 74575, 77425, 127955, 486229, 639775, 2431145, 12155725]

約数ペア:

[(1, 12155725), (5, 2431145), (19, 639775), (25, 486229), (95, 127955), (157, 77425), (163, 74575), (475, 25591), (785, 15485), (815, 14915), (2983, 4075), (3097, 3925)]