68839580

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{643}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 148980384

約数和(自身を除く): 80140804

約数列:

[1, 2, 4, 5, 10, 20, 53, 101, 106, 202, 212, 265, 404, 505, 530, 643, 1010, 1060, 1286, 2020, 2572, 3215, 5353, 6430, 10706, 12860, 21412, 26765, 34079, 53530, 64943, 68158, 107060, 129886, 136316, 170395, 259772, 324715, 340790, 649430, 681580, 1298860, 3441979, 6883958, 13767916, 17209895, 34419790, 68839580]

約数ペア:

[(1, 68839580), (2, 34419790), (4, 17209895), (5, 13767916), (10, 6883958), (20, 3441979), (53, 1298860), (101, 681580), (106, 649430), (202, 340790), (212, 324715), (265, 259772), (404, 170395), (505, 136316), (530, 129886), (643, 107060), (1010, 68158), (1060, 64943), (1286, 53530), (2020, 34079), (2572, 26765), (3215, 21412), (5353, 12860), (6430, 10706)]