18671560

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6967}}^1$

素因数の和:7045

約数の個数: 32

約数和(自身を含む): 42644160

約数和(自身を除く): 23972600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 6967, 13934, 27868, 34835, 55736, 69670, 139340, 278680, 466789, 933578, 1867156, 2333945, 3734312, 4667890, 9335780, 18671560]

約数ペア:

[(1, 18671560), (2, 9335780), (4, 4667890), (5, 3734312), (8, 2333945), (10, 1867156), (20, 933578), (40, 466789), (67, 278680), (134, 139340), (268, 69670), (335, 55736), (536, 34835), (670, 27868), (1340, 13934), (2680, 6967)]