20574775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 29685600

約数和(自身を除く): 9110825

約数列:

[1, 5, 13, 25, 29, 37, 59, 65, 145, 185, 295, 325, 377, 481, 725, 767, 925, 1073, 1475, 1711, 1885, 2183, 2405, 3835, 5365, 8555, 9425, 10915, 12025, 13949, 19175, 22243, 26825, 28379, 42775, 54575, 63307, 69745, 111215, 141895, 316535, 348725, 556075, 709475, 822991, 1582675, 4114955, 20574775]

約数ペア:

[(1, 20574775), (5, 4114955), (13, 1582675), (25, 822991), (29, 709475), (37, 556075), (59, 348725), (65, 316535), (145, 141895), (185, 111215), (295, 69745), (325, 63307), (377, 54575), (481, 42775), (725, 28379), (767, 26825), (925, 22243), (1073, 19175), (1475, 13949), (1711, 12025), (1885, 10915), (2183, 9425), (2405, 8555), (3835, 5365)]