15280025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:413

約数の個数: 24

約数和(自身を含む): 20277720

約数和(自身を除く): 4997695

約数列:

[1, 5, 17, 25, 85, 157, 229, 425, 785, 1145, 2669, 3893, 3925, 5725, 13345, 19465, 35953, 66725, 97325, 179765, 611201, 898825, 3056005, 15280025]

約数ペア:

[(1, 15280025), (5, 3056005), (17, 898825), (25, 611201), (85, 179765), (157, 97325), (229, 66725), (425, 35953), (785, 19465), (1145, 13345), (2669, 5725), (3893, 3925)]