30415420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{217253}}^1$

素因数の和:217269

約数の個数: 24

約数和(自身を含む): 72997344

約数和(自身を除く): 42581924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 217253, 434506, 869012, 1086265, 1520771, 2172530, 3041542, 4345060, 6083084, 7603855, 15207710, 30415420]

約数ペア:

[(1, 30415420), (2, 15207710), (4, 7603855), (5, 6083084), (7, 4345060), (10, 3041542), (14, 2172530), (20, 1520771), (28, 1086265), (35, 869012), (70, 434506), (140, 217253)]