668565520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1193867}}^1$

素因数の和:1193887

約数の個数: 40

約数和(自身を含む): 1776475584

約数和(自身を除く): 1107910064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1193867, 2387734, 4775468, 5969335, 8357069, 9550936, 11938670, 16714138, 19101872, 23877340, 33428276, 41785345, 47754680, 66856552, 83570690, 95509360, 133713104, 167141380, 334282760, 668565520]

約数ペア:

[(1, 668565520), (2, 334282760), (4, 167141380), (5, 133713104), (7, 95509360), (8, 83570690), (10, 66856552), (14, 47754680), (16, 41785345), (20, 33428276), (28, 23877340), (35, 19101872), (40, 16714138), (56, 11938670), (70, 9550936), (80, 8357069), (112, 5969335), (140, 4775468), (280, 2387734), (560, 1193867)]