78491480

素因数分解:

$2^3\times 5^1\times {\mathrm{1962287}}^1$

素因数の和:1962298

約数の個数: 16

約数和(自身を含む): 176605920

約数和(自身を除く): 98114440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1962287, 3924574, 7849148, 9811435, 15698296, 19622870, 39245740, 78491480]

約数ペア:

[(1, 78491480), (2, 39245740), (4, 19622870), (5, 15698296), (8, 9811435), (10, 7849148), (20, 3924574), (40, 1962287)]