28318788

素因数分解:

$2^2\times 3^3\times {\mathrm{263}}^1\times {\mathrm{997}}^1$

素因数の和:1273

約数の個数: 48

約数和(自身を含む): 73772160

約数和(自身を除く): 45453372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 263, 526, 789, 997, 1052, 1578, 1994, 2367, 2991, 3156, 3988, 4734, 5982, 7101, 8973, 9468, 11964, 14202, 17946, 26919, 28404, 35892, 53838, 107676, 262211, 524422, 786633, 1048844, 1573266, 2359899, 3146532, 4719798, 7079697, 9439596, 14159394, 28318788]

約数ペア:

[(1, 28318788), (2, 14159394), (3, 9439596), (4, 7079697), (6, 4719798), (9, 3146532), (12, 2359899), (18, 1573266), (27, 1048844), (36, 786633), (54, 524422), (108, 262211), (263, 107676), (526, 53838), (789, 35892), (997, 28404), (1052, 26919), (1578, 17946), (1994, 14202), (2367, 11964), (2991, 9468), (3156, 8973), (3988, 7101), (4734, 5982)]