77691280

素因数分解:

$2^4\times 5^1\times {\mathrm{971141}}^1$

素因数の和:971154

約数の個数: 20

約数和(自身を含む): 180632412

約数和(自身を除く): 102941132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971141, 1942282, 3884564, 4855705, 7769128, 9711410, 15538256, 19422820, 38845640, 77691280]

約数ペア:

[(1, 77691280), (2, 38845640), (4, 19422820), (5, 15538256), (8, 9711410), (10, 7769128), (16, 4855705), (20, 3884564), (40, 1942282), (80, 971141)]