18747130

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:562

約数の個数: 32

約数和(自身を含む): 34850448

約数和(自身を除く): 16103318

約数列:

[1, 2, 5, 10, 61, 73, 122, 146, 305, 365, 421, 610, 730, 842, 2105, 4210, 4453, 8906, 22265, 25681, 30733, 44530, 51362, 61466, 128405, 153665, 256810, 307330, 1874713, 3749426, 9373565, 18747130]

約数ペア:

[(1, 18747130), (2, 9373565), (5, 3749426), (10, 1874713), (61, 307330), (73, 256810), (122, 153665), (146, 128405), (305, 61466), (365, 51362), (421, 44530), (610, 30733), (730, 25681), (842, 22265), (2105, 8906), (4210, 4453)]