201718580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1440847}}^1$

素因数の和:1440863

約数の個数: 24

約数和(自身を含む): 484124928

約数和(自身を除く): 282406348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1440847, 2881694, 5763388, 7204235, 10085929, 14408470, 20171858, 28816940, 40343716, 50429645, 100859290, 201718580]

約数ペア:

[(1, 201718580), (2, 100859290), (4, 50429645), (5, 40343716), (7, 28816940), (10, 20171858), (14, 14408470), (20, 10085929), (28, 7204235), (35, 5763388), (70, 2881694), (140, 1440847)]