18629840

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{3947}}^1$

素因数の和:4019

約数の個数: 40

約数和(自身を含む): 44059680

約数和(自身を除く): 25429840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 3947, 4720, 7894, 15788, 19735, 31576, 39470, 63152, 78940, 157880, 232873, 315760, 465746, 931492, 1164365, 1862984, 2328730, 3725968, 4657460, 9314920, 18629840]

約数ペア:

[(1, 18629840), (2, 9314920), (4, 4657460), (5, 3725968), (8, 2328730), (10, 1862984), (16, 1164365), (20, 931492), (40, 465746), (59, 315760), (80, 232873), (118, 157880), (236, 78940), (295, 63152), (472, 39470), (590, 31576), (944, 19735), (1180, 15788), (2360, 7894), (3947, 4720)]