7405420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 17400096

約数和(自身を除く): 9994676

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 821, 902, 1642, 1804, 2255, 3284, 4105, 4510, 8210, 9020, 9031, 16420, 18062, 33661, 36124, 45155, 67322, 90310, 134644, 168305, 180620, 336610, 370271, 673220, 740542, 1481084, 1851355, 3702710, 7405420]

約数ペア:

[(1, 7405420), (2, 3702710), (4, 1851355), (5, 1481084), (10, 740542), (11, 673220), (20, 370271), (22, 336610), (41, 180620), (44, 168305), (55, 134644), (82, 90310), (110, 67322), (164, 45155), (205, 36124), (220, 33661), (410, 18062), (451, 16420), (820, 9031), (821, 9020), (902, 8210), (1642, 4510), (1804, 4105), (2255, 3284)]