7801420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{35461}}^1$

素因数の和:35481

約数の個数: 24

約数和(自身を含む): 17872848

約数和(自身を除く): 10071428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 35461, 70922, 141844, 177305, 354610, 390071, 709220, 780142, 1560284, 1950355, 3900710, 7801420]

約数ペア:

[(1, 7801420), (2, 3900710), (4, 1950355), (5, 1560284), (10, 780142), (11, 709220), (20, 390071), (22, 354610), (44, 177305), (55, 141844), (110, 70922), (220, 35461)]