157225280

素因数分解:

$2^6\times 5^1\times {\mathrm{491329}}^1$

素因数の和:491346

約数の個数: 28

約数和(自身を含む): 374393460

約数和(自身を除く): 217168180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 491329, 982658, 1965316, 2456645, 3930632, 4913290, 7861264, 9826580, 15722528, 19653160, 31445056, 39306320, 78612640, 157225280]

約数ペア:

[(1, 157225280), (2, 78612640), (4, 39306320), (5, 31445056), (8, 19653160), (10, 15722528), (16, 9826580), (20, 7861264), (32, 4913290), (40, 3930632), (64, 2456645), (80, 1965316), (160, 982658), (320, 491329)]