78283880

素因数分解:

$2^3\times 5^1\times {\mathrm{1957097}}^1$

素因数の和:1957108

約数の個数: 16

約数和(自身を含む): 176138820

約数和(自身を除く): 97854940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1957097, 3914194, 7828388, 9785485, 15656776, 19570970, 39141940, 78283880]

約数ペア:

[(1, 78283880), (2, 39141940), (4, 19570970), (5, 15656776), (8, 9785485), (10, 7828388), (20, 3914194), (40, 1957097)]