201521020

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{37181}}^1$

素因数の和:37461

約数の個数: 24

約数和(自身を含む): 424767168

約数和(自身を除く): 223246148

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 37181, 74362, 148724, 185905, 371810, 743620, 10076051, 20152102, 40304204, 50380255, 100760510, 201521020]

約数ペア:

[(1, 201521020), (2, 100760510), (4, 50380255), (5, 40304204), (10, 20152102), (20, 10076051), (271, 743620), (542, 371810), (1084, 185905), (1355, 148724), (2710, 74362), (5420, 37181)]