18178860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43283}}^1$

素因数の和:43302

約数の個数: 48

約数和(自身を含む): 58173696

約数和(自身を除く): 39994836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 43283, 86566, 129849, 173132, 216415, 259698, 302981, 432830, 519396, 605962, 649245, 865660, 908943, 1211924, 1298490, 1514905, 1817886, 2596980, 3029810, 3635772, 4544715, 6059620, 9089430, 18178860]

約数ペア:

[(1, 18178860), (2, 9089430), (3, 6059620), (4, 4544715), (5, 3635772), (6, 3029810), (7, 2596980), (10, 1817886), (12, 1514905), (14, 1298490), (15, 1211924), (20, 908943), (21, 865660), (28, 649245), (30, 605962), (35, 519396), (42, 432830), (60, 302981), (70, 259698), (84, 216415), (105, 173132), (140, 129849), (210, 86566), (420, 43283)]