79890910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1\times {\mathrm{1151}}^1$

素因数の和:1800

約数の個数: 32

約数和(自身を含む): 157261824

約数和(自身を除く): 77370914

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 631, 1151, 1262, 2302, 3155, 5755, 6310, 6941, 11510, 12661, 13882, 25322, 34705, 63305, 69410, 126610, 726281, 1452562, 3631405, 7262810, 7989091, 15978182, 39945455, 79890910]

約数ペア:

[(1, 79890910), (2, 39945455), (5, 15978182), (10, 7989091), (11, 7262810), (22, 3631405), (55, 1452562), (110, 726281), (631, 126610), (1151, 69410), (1262, 63305), (2302, 34705), (3155, 25322), (5755, 13882), (6310, 12661), (6941, 11510)]