20565350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1091}}^1$

素因数の和:1145

約数の個数: 48

約数和(自身を含む): 42653520

約数和(自身を除く): 22088170

約数列:

[1, 2, 5, 10, 13, 25, 26, 29, 50, 58, 65, 130, 145, 290, 325, 377, 650, 725, 754, 1091, 1450, 1885, 2182, 3770, 5455, 9425, 10910, 14183, 18850, 27275, 28366, 31639, 54550, 63278, 70915, 141830, 158195, 316390, 354575, 411307, 709150, 790975, 822614, 1581950, 2056535, 4113070, 10282675, 20565350]

約数ペア:

[(1, 20565350), (2, 10282675), (5, 4113070), (10, 2056535), (13, 1581950), (25, 822614), (26, 790975), (29, 709150), (50, 411307), (58, 354575), (65, 316390), (130, 158195), (145, 141830), (290, 70915), (325, 63278), (377, 54550), (650, 31639), (725, 28366), (754, 27275), (1091, 18850), (1450, 14183), (1885, 10910), (2182, 9425), (3770, 5455)]