77710460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{829}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 168722400

約数和(自身を除く): 91011940

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 109, 172, 215, 218, 430, 436, 545, 829, 860, 1090, 1658, 2180, 3316, 4145, 4687, 8290, 9374, 16580, 18748, 23435, 35647, 46870, 71294, 90361, 93740, 142588, 178235, 180722, 356470, 361444, 451805, 712940, 903610, 1807220, 3885523, 7771046, 15542092, 19427615, 38855230, 77710460]

約数ペア:

[(1, 77710460), (2, 38855230), (4, 19427615), (5, 15542092), (10, 7771046), (20, 3885523), (43, 1807220), (86, 903610), (109, 712940), (172, 451805), (215, 361444), (218, 356470), (430, 180722), (436, 178235), (545, 142588), (829, 93740), (860, 90361), (1090, 71294), (1658, 46870), (2180, 35647), (3316, 23435), (4145, 18748), (4687, 16580), (8290, 9374)]