998416225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{509}}^1\times {\mathrm{2531}}^1$

素因数の和:3081

約数の個数: 24

約数和(自身を含む): 1280989440

約数和(自身を除く): 282573215

約数列:

[1, 5, 25, 31, 155, 509, 775, 2531, 2545, 12655, 12725, 15779, 63275, 78461, 78895, 392305, 394475, 1288279, 1961525, 6441395, 32206975, 39936649, 199683245, 998416225]

約数ペア:

[(1, 998416225), (5, 199683245), (25, 39936649), (31, 32206975), (155, 6441395), (509, 1961525), (775, 1288279), (2531, 394475), (2545, 392305), (12655, 78895), (12725, 78461), (15779, 63275)]