201954320

素因数分解:

$2^4\times 5^1\times {\mathrm{2524429}}^1$

素因数の和:2524442

約数の個数: 20

約数和(自身を含む): 469543980

約数和(自身を除く): 267589660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2524429, 5048858, 10097716, 12622145, 20195432, 25244290, 40390864, 50488580, 100977160, 201954320]

約数ペア:

[(1, 201954320), (2, 100977160), (4, 50488580), (5, 40390864), (8, 25244290), (10, 20195432), (16, 12622145), (20, 10097716), (40, 5048858), (80, 2524429)]