18814280

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4657}}^1$

素因数の和:4769

約数の個数: 32

約数和(自身を含む): 42760440

約数和(自身を除く): 23946160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4657, 9314, 18628, 23285, 37256, 46570, 93140, 186280, 470357, 940714, 1881428, 2351785, 3762856, 4703570, 9407140, 18814280]

約数ペア:

[(1, 18814280), (2, 9407140), (4, 4703570), (5, 3762856), (8, 2351785), (10, 1881428), (20, 940714), (40, 470357), (101, 186280), (202, 93140), (404, 46570), (505, 37256), (808, 23285), (1010, 18628), (2020, 9314), (4040, 4657)]