8521480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 21228480

約数和(自身を除く): 12707000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 107, 110, 181, 214, 220, 362, 428, 440, 535, 724, 856, 905, 1070, 1177, 1448, 1810, 1991, 2140, 2354, 3620, 3982, 4280, 4708, 5885, 7240, 7964, 9416, 9955, 11770, 15928, 19367, 19910, 23540, 38734, 39820, 47080, 77468, 79640, 96835, 154936, 193670, 213037, 387340, 426074, 774680, 852148, 1065185, 1704296, 2130370, 4260740, 8521480]

約数ペア:

[(1, 8521480), (2, 4260740), (4, 2130370), (5, 1704296), (8, 1065185), (10, 852148), (11, 774680), (20, 426074), (22, 387340), (40, 213037), (44, 193670), (55, 154936), (88, 96835), (107, 79640), (110, 77468), (181, 47080), (214, 39820), (220, 38734), (362, 23540), (428, 19910), (440, 19367), (535, 15928), (724, 11770), (856, 9955), (905, 9416), (1070, 7964), (1177, 7240), (1448, 5885), (1810, 4708), (1991, 4280), (2140, 3982), (2354, 3620)]