639791240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1454071}}^1$

素因数の和:1454093

約数の個数: 32

約数和(自身を含む): 1570397760

約数和(自身を除く): 930606520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1454071, 2908142, 5816284, 7270355, 11632568, 14540710, 15994781, 29081420, 31989562, 58162840, 63979124, 79973905, 127958248, 159947810, 319895620, 639791240]

約数ペア:

[(1, 639791240), (2, 319895620), (4, 159947810), (5, 127958248), (8, 79973905), (10, 63979124), (11, 58162840), (20, 31989562), (22, 29081420), (40, 15994781), (44, 14540710), (55, 11632568), (88, 7270355), (110, 5816284), (220, 2908142), (440, 1454071)]