28004225

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{431}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 36640512

約数和(自身を除く): 8636287

約数列:

[1, 5, 23, 25, 113, 115, 431, 565, 575, 2155, 2599, 2825, 9913, 10775, 12995, 48703, 49565, 64975, 243515, 247825, 1120169, 1217575, 5600845, 28004225]

約数ペア:

[(1, 28004225), (5, 5600845), (23, 1217575), (25, 1120169), (113, 247825), (115, 243515), (431, 64975), (565, 49565), (575, 48703), (2155, 12995), (2599, 10775), (2825, 9913)]