2646220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 6054048

約数和(自身を除く): 3407828

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 181, 215, 340, 362, 430, 724, 731, 860, 905, 1462, 1810, 2924, 3077, 3620, 3655, 6154, 7310, 7783, 12308, 14620, 15385, 15566, 30770, 31132, 38915, 61540, 77830, 132311, 155660, 264622, 529244, 661555, 1323110, 2646220]

約数ペア:

[(1, 2646220), (2, 1323110), (4, 661555), (5, 529244), (10, 264622), (17, 155660), (20, 132311), (34, 77830), (43, 61540), (68, 38915), (85, 31132), (86, 30770), (170, 15566), (172, 15385), (181, 14620), (215, 12308), (340, 7783), (362, 7310), (430, 6154), (724, 3655), (731, 3620), (860, 3077), (905, 2924), (1462, 1810)]