64709960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{231107}}^1$

素因数の和:231125

約数の個数: 32

約数和(自身を含む): 166397760

約数和(自身を除く): 101687800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 231107, 462214, 924428, 1155535, 1617749, 1848856, 2311070, 3235498, 4622140, 6470996, 8088745, 9244280, 12941992, 16177490, 32354980, 64709960]

約数ペア:

[(1, 64709960), (2, 32354980), (4, 16177490), (5, 12941992), (7, 9244280), (8, 8088745), (10, 6470996), (14, 4622140), (20, 3235498), (28, 2311070), (35, 1848856), (40, 1617749), (56, 1155535), (70, 924428), (140, 462214), (280, 231107)]