78380440

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{14303}}^1$

素因数の和:14451

約数の個数: 32

約数和(自身を含む): 177655680

約数和(自身を除く): 99275240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 14303, 28606, 57212, 71515, 114424, 143030, 286060, 572120, 1959511, 3919022, 7838044, 9797555, 15676088, 19595110, 39190220, 78380440]

約数ペア:

[(1, 78380440), (2, 39190220), (4, 19595110), (5, 15676088), (8, 9797555), (10, 7838044), (20, 3919022), (40, 1959511), (137, 572120), (274, 286060), (548, 143030), (685, 114424), (1096, 71515), (1370, 57212), (2740, 28606), (5480, 14303)]