89901340

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{28631}}^1$

素因数の和:28797

約数の個数: 24

約数和(自身を含む): 190001952

約数和(自身を除く): 100100612

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 28631, 57262, 114524, 143155, 286310, 572620, 4495067, 8990134, 17980268, 22475335, 44950670, 89901340]

約数ペア:

[(1, 89901340), (2, 44950670), (4, 22475335), (5, 17980268), (10, 8990134), (20, 4495067), (157, 572620), (314, 286310), (628, 143155), (785, 114524), (1570, 57262), (3140, 28631)]