28618525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{509}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 38513160

約数和(自身を除く): 9894635

約数列:

[1, 5, 13, 25, 65, 173, 325, 509, 865, 2249, 2545, 4325, 6617, 11245, 12725, 33085, 56225, 88057, 165425, 440285, 1144741, 2201425, 5723705, 28618525]

約数ペア:

[(1, 28618525), (5, 5723705), (13, 2201425), (25, 1144741), (65, 440285), (173, 165425), (325, 88057), (509, 56225), (865, 33085), (2249, 12725), (2545, 11245), (4325, 6617)]