20769800

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3581}}^1$

素因数の和:3626

約数の個数: 48

約数和(自身を含む): 49968900

約数和(自身を除く): 29199100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 145, 200, 232, 290, 580, 725, 1160, 1450, 2900, 3581, 5800, 7162, 14324, 17905, 28648, 35810, 71620, 89525, 103849, 143240, 179050, 207698, 358100, 415396, 519245, 716200, 830792, 1038490, 2076980, 2596225, 4153960, 5192450, 10384900, 20769800]

約数ペア:

[(1, 20769800), (2, 10384900), (4, 5192450), (5, 4153960), (8, 2596225), (10, 2076980), (20, 1038490), (25, 830792), (29, 716200), (40, 519245), (50, 415396), (58, 358100), (100, 207698), (116, 179050), (145, 143240), (200, 103849), (232, 89525), (290, 71620), (580, 35810), (725, 28648), (1160, 17905), (1450, 14324), (2900, 7162), (3581, 5800)]