64821740

素因数分解:

$2^2\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{3049}}^1$

素因数の和:4121

約数の個数: 24

約数和(自身を含む): 136298400

約数和(自身を除く): 71476660

約数列:

[1, 2, 4, 5, 10, 20, 1063, 2126, 3049, 4252, 5315, 6098, 10630, 12196, 15245, 21260, 30490, 60980, 3241087, 6482174, 12964348, 16205435, 32410870, 64821740]

約数ペア:

[(1, 64821740), (2, 32410870), (4, 16205435), (5, 12964348), (10, 6482174), (20, 3241087), (1063, 60980), (2126, 30490), (3049, 21260), (4252, 15245), (5315, 12196), (6098, 10630)]