28474375

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{1571}}^1$

素因数の和:1620

約数の個数: 20

約数和(自身を含む): 36831960

約数和(自身を除く): 8357585

約数列:

[1, 5, 25, 29, 125, 145, 625, 725, 1571, 3625, 7855, 18125, 39275, 45559, 196375, 227795, 981875, 1138975, 5694875, 28474375]

約数ペア:

[(1, 28474375), (5, 5694875), (25, 1138975), (29, 981875), (125, 227795), (145, 196375), (625, 45559), (725, 39275), (1571, 18125), (3625, 7855)]