4442496680

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{135277}}^1$

素因数の和:136109

約数の個数: 32

約数和(自身を含む): 10007866440

約数和(自身を除く): 5565369760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 3284, 4105, 6568, 8210, 16420, 32840, 135277, 270554, 541108, 676385, 1082216, 1352770, 2705540, 5411080, 111062417, 222124834, 444249668, 555312085, 888499336, 1110624170, 2221248340, 4442496680]

約数ペア:

[(1, 4442496680), (2, 2221248340), (4, 1110624170), (5, 888499336), (8, 555312085), (10, 444249668), (20, 222124834), (40, 111062417), (821, 5411080), (1642, 2705540), (3284, 1352770), (4105, 1082216), (6568, 676385), (8210, 541108), (16420, 270554), (32840, 135277)]