20207575

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 25953696

約数和(自身を除く): 5746121

約数列:

[1, 5, 25, 53, 101, 151, 265, 505, 755, 1325, 2525, 3775, 5353, 8003, 15251, 26765, 40015, 76255, 133825, 200075, 381275, 808303, 4041515, 20207575]

約数ペア:

[(1, 20207575), (5, 4041515), (25, 808303), (53, 381275), (101, 200075), (151, 133825), (265, 76255), (505, 40015), (755, 26765), (1325, 15251), (2525, 8003), (3775, 5353)]