31165640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{367}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 77103360

約数和(自身を除く): 45937720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 193, 220, 367, 386, 440, 734, 772, 965, 1468, 1544, 1835, 1930, 2123, 2936, 3670, 3860, 4037, 4246, 7340, 7720, 8074, 8492, 10615, 14680, 16148, 16984, 20185, 21230, 32296, 40370, 42460, 70831, 80740, 84920, 141662, 161480, 283324, 354155, 566648, 708310, 779141, 1416620, 1558282, 2833240, 3116564, 3895705, 6233128, 7791410, 15582820, 31165640]

約数ペア:

[(1, 31165640), (2, 15582820), (4, 7791410), (5, 6233128), (8, 3895705), (10, 3116564), (11, 2833240), (20, 1558282), (22, 1416620), (40, 779141), (44, 708310), (55, 566648), (88, 354155), (110, 283324), (193, 161480), (220, 141662), (367, 84920), (386, 80740), (440, 70831), (734, 42460), (772, 40370), (965, 32296), (1468, 21230), (1544, 20185), (1835, 16984), (1930, 16148), (2123, 14680), (2936, 10615), (3670, 8492), (3860, 8074), (4037, 7720), (4246, 7340)]