20181382160

素因数分解:

$2^4\times 5^1\times {\mathrm{613}}^1\times {\mathrm{411529}}^1$

素因数の和:412155

約数の個数: 40

約数和(自身を含む): 46998372120

約数和(自身を除く): 26816989960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 613, 1226, 2452, 3065, 4904, 6130, 9808, 12260, 24520, 49040, 411529, 823058, 1646116, 2057645, 3292232, 4115290, 6584464, 8230580, 16461160, 32922320, 252267277, 504534554, 1009069108, 1261336385, 2018138216, 2522672770, 4036276432, 5045345540, 10090691080, 20181382160]

約数ペア:

[(1, 20181382160), (2, 10090691080), (4, 5045345540), (5, 4036276432), (8, 2522672770), (10, 2018138216), (16, 1261336385), (20, 1009069108), (40, 504534554), (80, 252267277), (613, 32922320), (1226, 16461160), (2452, 8230580), (3065, 6584464), (4904, 4115290), (6130, 3292232), (9808, 2057645), (12260, 1646116), (24520, 823058), (49040, 411529)]