15678216985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1\times {\mathrm{5449}}^1$

素因数の和:6481

約数の個数: 32

約数和(自身を含む): 20467584000

約数和(自身を除く): 4789367015

約数列:

[1, 5, 19, 31, 95, 155, 589, 977, 2945, 4885, 5449, 18563, 27245, 30287, 92815, 103531, 151435, 168919, 517655, 575453, 844595, 2877265, 3209461, 5323673, 16047305, 26618365, 101149787, 165033863, 505748935, 825169315, 3135643397, 15678216985]

約数ペア:

[(1, 15678216985), (5, 3135643397), (19, 825169315), (31, 505748935), (95, 165033863), (155, 101149787), (589, 26618365), (977, 16047305), (2945, 5323673), (4885, 3209461), (5449, 2877265), (18563, 844595), (27245, 575453), (30287, 517655), (92815, 168919), (103531, 151435)]