64390020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1669}}^1$

素因数の和:2324

約数の個数: 48

約数和(自身を含む): 180680640

約数和(自身を除く): 116290620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 643, 1286, 1669, 1929, 2572, 3215, 3338, 3858, 5007, 6430, 6676, 7716, 8345, 9645, 10014, 12860, 16690, 19290, 20028, 25035, 33380, 38580, 50070, 100140, 1073167, 2146334, 3219501, 4292668, 5365835, 6439002, 10731670, 12878004, 16097505, 21463340, 32195010, 64390020]

約数ペア:

[(1, 64390020), (2, 32195010), (3, 21463340), (4, 16097505), (5, 12878004), (6, 10731670), (10, 6439002), (12, 5365835), (15, 4292668), (20, 3219501), (30, 2146334), (60, 1073167), (643, 100140), (1286, 50070), (1669, 38580), (1929, 33380), (2572, 25035), (3215, 20028), (3338, 19290), (3858, 16690), (5007, 12860), (6430, 10014), (6676, 9645), (7716, 8345)]