405625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{59}}^1$

素因数の和:90

約数の個数: 20

約数和(自身を含む): 562320

約数和(自身を除く): 156695

約数列:

[1, 5, 11, 25, 55, 59, 125, 275, 295, 625, 649, 1375, 1475, 3245, 6875, 7375, 16225, 36875, 81125, 405625]

約数ペア:

[(1, 405625), (5, 81125), (11, 36875), (25, 16225), (55, 7375), (59, 6875), (125, 3245), (275, 1475), (295, 1375), (625, 649)]