30981070

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 57673440

約数和(自身を除く): 26692370

約数列:

[1, 2, 5, 10, 43, 86, 109, 215, 218, 430, 545, 661, 1090, 1322, 3305, 4687, 6610, 9374, 23435, 28423, 46870, 56846, 72049, 142115, 144098, 284230, 360245, 720490, 3098107, 6196214, 15490535, 30981070]

約数ペア:

[(1, 30981070), (2, 15490535), (5, 6196214), (10, 3098107), (43, 720490), (86, 360245), (109, 284230), (215, 144098), (218, 142115), (430, 72049), (545, 56846), (661, 46870), (1090, 28423), (1322, 23435), (3305, 9374), (4687, 6610)]