66878420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{883}}^1$

素因数の和:1440

約数の個数: 48

約数和(自身を含む): 160987008

約数和(自身を除く): 94108588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 541, 883, 1082, 1766, 2164, 2705, 3532, 3787, 4415, 5410, 6181, 7574, 8830, 10820, 12362, 15148, 17660, 18935, 24724, 30905, 37870, 61810, 75740, 123620, 477703, 955406, 1910812, 2388515, 3343921, 4777030, 6687842, 9554060, 13375684, 16719605, 33439210, 66878420]

約数ペア:

[(1, 66878420), (2, 33439210), (4, 16719605), (5, 13375684), (7, 9554060), (10, 6687842), (14, 4777030), (20, 3343921), (28, 2388515), (35, 1910812), (70, 955406), (140, 477703), (541, 123620), (883, 75740), (1082, 61810), (1766, 37870), (2164, 30905), (2705, 24724), (3532, 18935), (3787, 17660), (4415, 15148), (5410, 12362), (6181, 10820), (7574, 8830)]