81776860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{1123}}^1$

素因数の和:1474

約数の個数: 48

約数和(自身を含む): 188076672

約数和(自身を除く): 106299812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 331, 662, 1123, 1324, 1655, 2246, 3310, 3641, 4492, 5615, 6620, 7282, 11230, 12353, 14564, 18205, 22460, 24706, 36410, 49412, 61765, 72820, 123530, 247060, 371713, 743426, 1486852, 1858565, 3717130, 4088843, 7434260, 8177686, 16355372, 20444215, 40888430, 81776860]

約数ペア:

[(1, 81776860), (2, 40888430), (4, 20444215), (5, 16355372), (10, 8177686), (11, 7434260), (20, 4088843), (22, 3717130), (44, 1858565), (55, 1486852), (110, 743426), (220, 371713), (331, 247060), (662, 123530), (1123, 72820), (1324, 61765), (1655, 49412), (2246, 36410), (3310, 24706), (3641, 22460), (4492, 18205), (5615, 14564), (6620, 12353), (7282, 11230)]