80854160

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{3229}}^1$

素因数の和:3555

約数の個数: 40

約数和(自身を含む): 188644920

約数和(自身を除く): 107790760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 2504, 3130, 3229, 5008, 6260, 6458, 12520, 12916, 16145, 25040, 25832, 32290, 51664, 64580, 129160, 258320, 1010677, 2021354, 4042708, 5053385, 8085416, 10106770, 16170832, 20213540, 40427080, 80854160]

約数ペア:

[(1, 80854160), (2, 40427080), (4, 20213540), (5, 16170832), (8, 10106770), (10, 8085416), (16, 5053385), (20, 4042708), (40, 2021354), (80, 1010677), (313, 258320), (626, 129160), (1252, 64580), (1565, 51664), (2504, 32290), (3130, 25832), (3229, 25040), (5008, 16145), (6260, 12916), (6458, 12520)]