12720730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{10513}}^1$

素因数の和:10542

約数の個数: 24

約数和(自身を含む): 25170516

約数和(自身を除く): 12449786

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 10513, 21026, 52565, 105130, 115643, 231286, 578215, 1156430, 1272073, 2544146, 6360365, 12720730]

約数ペア:

[(1, 12720730), (2, 6360365), (5, 2544146), (10, 1272073), (11, 1156430), (22, 578215), (55, 231286), (110, 115643), (121, 105130), (242, 52565), (605, 21026), (1210, 10513)]