200787775

素因数分解:

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

素因数の和:1059

約数の個数: 18

約数和(自身を含む): 257514272

約数和(自身を除く): 56726497

約数列:

[1, 5, 25, 31, 155, 509, 775, 2545, 12725, 15779, 78895, 259081, 394475, 1295405, 6477025, 8031511, 40157555, 200787775]

約数ペア:

[(1, 200787775), (5, 40157555), (25, 8031511), (31, 6477025), (155, 1295405), (509, 394475), (775, 259081), (2545, 78895), (12725, 15779)]