20456644

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 41510448

約数和(自身を除く): 21053804

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 73, 146, 221, 292, 317, 442, 634, 884, 949, 1241, 1268, 1898, 2482, 3796, 4121, 4964, 5389, 8242, 10778, 16133, 16484, 21556, 23141, 32266, 46282, 64532, 70057, 92564, 140114, 280228, 300833, 393397, 601666, 786794, 1203332, 1573588, 5114161, 10228322, 20456644]

約数ペア:

[(1, 20456644), (2, 10228322), (4, 5114161), (13, 1573588), (17, 1203332), (26, 786794), (34, 601666), (52, 393397), (68, 300833), (73, 280228), (146, 140114), (221, 92564), (292, 70057), (317, 64532), (442, 46282), (634, 32266), (884, 23141), (949, 21556), (1241, 16484), (1268, 16133), (1898, 10778), (2482, 8242), (3796, 5389), (4121, 4964)]