123826780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{80407}}^1$

素因数の和:80434

約数の個数: 48

約数和(自身を含む): 324205056

約数和(自身を除く): 200378276

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 80407, 160814, 321628, 402035, 562849, 804070, 884477, 1125698, 1608140, 1768954, 2251396, 2814245, 3537908, 4422385, 5628490, 6191339, 8844770, 11256980, 12382678, 17689540, 24765356, 30956695, 61913390, 123826780]

約数ペア:

[(1, 123826780), (2, 61913390), (4, 30956695), (5, 24765356), (7, 17689540), (10, 12382678), (11, 11256980), (14, 8844770), (20, 6191339), (22, 5628490), (28, 4422385), (35, 3537908), (44, 2814245), (55, 2251396), (70, 1768954), (77, 1608140), (110, 1125698), (140, 884477), (154, 804070), (220, 562849), (308, 402035), (385, 321628), (770, 160814), (1540, 80407)]