40804701620

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2485061}}^1$

素因数の和:2485891

約数の個数: 24

約数和(自身を含む): 85794280488

約数和(自身を除く): 44989578868

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 16420, 2485061, 4970122, 9940244, 12425305, 24850610, 49701220, 2040235081, 4080470162, 8160940324, 10201175405, 20402350810, 40804701620]

約数ペア:

[(1, 40804701620), (2, 20402350810), (4, 10201175405), (5, 8160940324), (10, 4080470162), (20, 2040235081), (821, 49701220), (1642, 24850610), (3284, 12425305), (4105, 9940244), (8210, 4970122), (16420, 2485061)]