64386260

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{3229}}^1$

素因数の和:4235

約数の個数: 24

約数和(自身を含む): 135388680

約数和(自身を除く): 71002420

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 3229, 3988, 4985, 6458, 9970, 12916, 16145, 19940, 32290, 64580, 3219313, 6438626, 12877252, 16096565, 32193130, 64386260]

約数ペア:

[(1, 64386260), (2, 32193130), (4, 16096565), (5, 12877252), (10, 6438626), (20, 3219313), (997, 64580), (1994, 32290), (3229, 19940), (3988, 16145), (4985, 12916), (6458, 9970)]