291008020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{309583}}^1$

素因数の和:309639

約数の個数: 24

約数和(自身を含む): 624121344

約数和(自身を除く): 333113324

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 309583, 619166, 1238332, 1547915, 3095830, 6191660, 14550401, 29100802, 58201604, 72752005, 145504010, 291008020]

約数ペア:

[(1, 291008020), (2, 145504010), (4, 72752005), (5, 58201604), (10, 29100802), (20, 14550401), (47, 6191660), (94, 3095830), (188, 1547915), (235, 1238332), (470, 619166), (940, 309583)]