78573640

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{8219}}^1$

素因数の和:8469

約数の個数: 32

約数和(自身を含む): 177552000

約数和(自身を除く): 98978360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 8219, 9560, 16438, 32876, 41095, 65752, 82190, 164380, 328760, 1964341, 3928682, 7857364, 9821705, 15714728, 19643410, 39286820, 78573640]

約数ペア:

[(1, 78573640), (2, 39286820), (4, 19643410), (5, 15714728), (8, 9821705), (10, 7857364), (20, 3928682), (40, 1964341), (239, 328760), (478, 164380), (956, 82190), (1195, 65752), (1912, 41095), (2390, 32876), (4780, 16438), (8219, 9560)]