31124720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 79896672

約数和(自身を除く): 48771952

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 113, 176, 220, 226, 313, 440, 452, 565, 626, 880, 904, 1130, 1243, 1252, 1565, 1808, 2260, 2486, 2504, 3130, 3443, 4520, 4972, 5008, 6215, 6260, 6886, 9040, 9944, 12430, 12520, 13772, 17215, 19888, 24860, 25040, 27544, 34430, 35369, 49720, 55088, 68860, 70738, 99440, 137720, 141476, 176845, 275440, 282952, 353690, 389059, 565904, 707380, 778118, 1414760, 1556236, 1945295, 2829520, 3112472, 3890590, 6224944, 7781180, 15562360, 31124720]

約数ペア:

[(1, 31124720), (2, 15562360), (4, 7781180), (5, 6224944), (8, 3890590), (10, 3112472), (11, 2829520), (16, 1945295), (20, 1556236), (22, 1414760), (40, 778118), (44, 707380), (55, 565904), (80, 389059), (88, 353690), (110, 282952), (113, 275440), (176, 176845), (220, 141476), (226, 137720), (313, 99440), (440, 70738), (452, 68860), (565, 55088), (626, 49720), (880, 35369), (904, 34430), (1130, 27544), (1243, 25040), (1252, 24860), (1565, 19888), (1808, 17215), (2260, 13772), (2486, 12520), (2504, 12430), (3130, 9944), (3443, 9040), (4520, 6886), (4972, 6260), (5008, 6215)]