72820025

素因数分解:

$5^2\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 92237400

約数和(自身を除く): 19417375

約数列:

[1, 5, 25, 113, 149, 173, 565, 745, 865, 2825, 3725, 4325, 16837, 19549, 25777, 84185, 97745, 128885, 420925, 488725, 644425, 2912801, 14564005, 72820025]

約数ペア:

[(1, 72820025), (5, 14564005), (25, 2912801), (113, 644425), (149, 488725), (173, 420925), (565, 128885), (745, 97745), (865, 84185), (2825, 25777), (3725, 19549), (4325, 16837)]