20120899180

素因数分解:

$2^2\times 5^1\times {\mathrm{3257}}^1\times {\mathrm{308887}}^1$

素因数の和:312153

約数の個数: 24

約数和(自身を含む): 42266998368

約数和(自身を除く): 22146099188

約数列:

[1, 2, 4, 5, 10, 20, 3257, 6514, 13028, 16285, 32570, 65140, 308887, 617774, 1235548, 1544435, 3088870, 6177740, 1006044959, 2012089918, 4024179836, 5030224795, 10060449590, 20120899180]

約数ペア:

[(1, 20120899180), (2, 10060449590), (4, 5030224795), (5, 4024179836), (10, 2012089918), (20, 1006044959), (3257, 6177740), (6514, 3088870), (13028, 1544435), (16285, 1235548), (32570, 617774), (65140, 308887)]