8672620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 20160000

約数和(自身を除く): 11487380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 499, 790, 869, 998, 1580, 1738, 1996, 2495, 3476, 4345, 4990, 5489, 8690, 9980, 10978, 17380, 21956, 27445, 39421, 54890, 78842, 109780, 157684, 197105, 394210, 433631, 788420, 867262, 1734524, 2168155, 4336310, 8672620]

約数ペア:

[(1, 8672620), (2, 4336310), (4, 2168155), (5, 1734524), (10, 867262), (11, 788420), (20, 433631), (22, 394210), (44, 197105), (55, 157684), (79, 109780), (110, 78842), (158, 54890), (220, 39421), (316, 27445), (395, 21956), (499, 17380), (790, 10978), (869, 9980), (998, 8690), (1580, 5489), (1738, 4990), (1996, 4345), (2495, 3476)]