18864040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36277}}^1$

素因数の和:36301

約数の個数: 32

約数和(自身を含む): 45710280

約数和(自身を除く): 26846240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 36277, 72554, 145108, 181385, 290216, 362770, 471601, 725540, 943202, 1451080, 1886404, 2358005, 3772808, 4716010, 9432020, 18864040]

約数ペア:

[(1, 18864040), (2, 9432020), (4, 4716010), (5, 3772808), (8, 2358005), (10, 1886404), (13, 1451080), (20, 943202), (26, 725540), (40, 471601), (52, 362770), (65, 290216), (104, 181385), (130, 145108), (260, 72554), (520, 36277)]