65414680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39887}}^1$

素因数の和:39939

約数の個数: 32

約数和(自身を含む): 150776640

約数和(自身を除く): 85361960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39887, 79774, 159548, 199435, 319096, 398870, 797740, 1595480, 1635367, 3270734, 6541468, 8176835, 13082936, 16353670, 32707340, 65414680]

約数ペア:

[(1, 65414680), (2, 32707340), (4, 16353670), (5, 13082936), (8, 8176835), (10, 6541468), (20, 3270734), (40, 1635367), (41, 1595480), (82, 797740), (164, 398870), (205, 319096), (328, 199435), (410, 159548), (820, 79774), (1640, 39887)]