20912012015

素因数分解:

$5^1\times {\mathrm{631}}^1\times {\mathrm{1637}}^1\times {\mathrm{4049}}^1$

素因数の和:6322

約数の個数: 16

約数和(自身を含む): 25155748800

約数和(自身を除く): 4243736785

約数列:

[1, 5, 631, 1637, 3155, 4049, 8185, 20245, 1032947, 2554919, 5164735, 6628213, 12774595, 33141065, 4182402403, 20912012015]

約数ペア:

[(1, 20912012015), (5, 4182402403), (631, 33141065), (1637, 12774595), (3155, 6628213), (4049, 5164735), (8185, 2554919), (20245, 1032947)]