2015980180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{123377}}^1$

素因数の和:123448

約数の個数: 48

約数和(自身を含む): 4560050880

約数和(自身を除く): 2544070700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 3268, 4085, 8170, 16340, 123377, 246754, 493508, 616885, 1233770, 2344163, 2467540, 4688326, 5305211, 9376652, 10610422, 11720815, 21220844, 23441630, 26526055, 46883260, 53052110, 100799009, 106104220, 201598018, 403196036, 503995045, 1007990090, 2015980180]

約数ペア:

[(1, 2015980180), (2, 1007990090), (4, 503995045), (5, 403196036), (10, 201598018), (19, 106104220), (20, 100799009), (38, 53052110), (43, 46883260), (76, 26526055), (86, 23441630), (95, 21220844), (172, 11720815), (190, 10610422), (215, 9376652), (380, 5305211), (430, 4688326), (817, 2467540), (860, 2344163), (1634, 1233770), (3268, 616885), (4085, 493508), (8170, 246754), (16340, 123377)]