123539240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{280771}}^1$

素因数の和:280793

約数の個数: 32

約数和(自身を含む): 303233760

約数和(自身を除く): 179694520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 280771, 561542, 1123084, 1403855, 2246168, 2807710, 3088481, 5615420, 6176962, 11230840, 12353924, 15442405, 24707848, 30884810, 61769620, 123539240]

約数ペア:

[(1, 123539240), (2, 61769620), (4, 30884810), (5, 24707848), (8, 15442405), (10, 12353924), (11, 11230840), (20, 6176962), (22, 5615420), (40, 3088481), (44, 2807710), (55, 2246168), (88, 1403855), (110, 1123084), (220, 561542), (440, 280771)]