315890680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1128181}}^1$

素因数の和:1128199

約数の個数: 32

約数和(自身を含む): 812291040

約数和(自身を除く): 496400360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1128181, 2256362, 4512724, 5640905, 7897267, 9025448, 11281810, 15794534, 22563620, 31589068, 39486335, 45127240, 63178136, 78972670, 157945340, 315890680]

約数ペア:

[(1, 315890680), (2, 157945340), (4, 78972670), (5, 63178136), (7, 45127240), (8, 39486335), (10, 31589068), (14, 22563620), (20, 15794534), (28, 11281810), (35, 9025448), (40, 7897267), (56, 5640905), (70, 4512724), (140, 2256362), (280, 1128181)]