20981580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{5927}}^1$

素因数の和:5998

約数の個数: 48

約数和(自身を含む): 59754240

約数和(自身を除く): 38772660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 59, 60, 118, 177, 236, 295, 354, 590, 708, 885, 1180, 1770, 3540, 5927, 11854, 17781, 23708, 29635, 35562, 59270, 71124, 88905, 118540, 177810, 349693, 355620, 699386, 1049079, 1398772, 1748465, 2098158, 3496930, 4196316, 5245395, 6993860, 10490790, 20981580]

約数ペア:

[(1, 20981580), (2, 10490790), (3, 6993860), (4, 5245395), (5, 4196316), (6, 3496930), (10, 2098158), (12, 1748465), (15, 1398772), (20, 1049079), (30, 699386), (59, 355620), (60, 349693), (118, 177810), (177, 118540), (236, 88905), (295, 71124), (354, 59270), (590, 35562), (708, 29635), (885, 23708), (1180, 17781), (1770, 11854), (3540, 5927)]