15709213990

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19885081}}^1$

素因数の和:19885167

約数の個数: 16

約数和(自身を含む): 28634518080

約数和(自身を除く): 12925304090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 19885081, 39770162, 99425405, 198850810, 1570921399, 3141842798, 7854606995, 15709213990]

約数ペア:

[(1, 15709213990), (2, 7854606995), (5, 3141842798), (10, 1570921399), (79, 198850810), (158, 99425405), (395, 39770162), (790, 19885081)]