78988720

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7207}}^1$

素因数の和:7357

約数の個数: 40

約数和(自身を含む): 185014944

約数和(自身を除く): 106026224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 5480, 7207, 10960, 14414, 28828, 36035, 57656, 72070, 115312, 144140, 288280, 576560, 987359, 1974718, 3949436, 4936795, 7898872, 9873590, 15797744, 19747180, 39494360, 78988720]

約数ペア:

[(1, 78988720), (2, 39494360), (4, 19747180), (5, 15797744), (8, 9873590), (10, 7898872), (16, 4936795), (20, 3949436), (40, 1974718), (80, 987359), (137, 576560), (274, 288280), (548, 144140), (685, 115312), (1096, 72070), (1370, 57656), (2192, 36035), (2740, 28828), (5480, 14414), (7207, 10960)]