18225440

素因数分解:

$2^5\times 5^1\times {\mathrm{113909}}^1$

素因数の和:113924

約数の個数: 24

約数和(自身を含む): 43057980

約数和(自身を除く): 24832540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 113909, 227818, 455636, 569545, 911272, 1139090, 1822544, 2278180, 3645088, 4556360, 9112720, 18225440]

約数ペア:

[(1, 18225440), (2, 9112720), (4, 4556360), (5, 3645088), (8, 2278180), (10, 1822544), (16, 1139090), (20, 911272), (32, 569545), (40, 455636), (80, 227818), (160, 113909)]