64469380

素因数分解:

$2^2\times 5^1\times {\mathrm{1549}}^1\times {\mathrm{2081}}^1$

素因数の和:3639

約数の個数: 24

約数和(自身を含む): 135538200

約数和(自身を除く): 71068820

約数列:

[1, 2, 4, 5, 10, 20, 1549, 2081, 3098, 4162, 6196, 7745, 8324, 10405, 15490, 20810, 30980, 41620, 3223469, 6446938, 12893876, 16117345, 32234690, 64469380]

約数ペア:

[(1, 64469380), (2, 32234690), (4, 16117345), (5, 12893876), (10, 6446938), (20, 3223469), (1549, 41620), (2081, 30980), (3098, 20810), (4162, 15490), (6196, 10405), (7745, 8324)]