17840440

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{3947}}^1$

素因数の和:4071

約数の個数: 32

約数和(自身を含む): 40506480

約数和(自身を除く): 22666040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 3947, 4520, 7894, 15788, 19735, 31576, 39470, 78940, 157880, 446011, 892022, 1784044, 2230055, 3568088, 4460110, 8920220, 17840440]

約数ペア:

[(1, 17840440), (2, 8920220), (4, 4460110), (5, 3568088), (8, 2230055), (10, 1784044), (20, 892022), (40, 446011), (113, 157880), (226, 78940), (452, 39470), (565, 31576), (904, 19735), (1130, 15788), (2260, 7894), (3947, 4520)]