78566440

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{10177}}^1$

素因数の和:10381

約数の個数: 32

約数和(自身を含む): 177707880

約数和(自身を除く): 99141440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720, 10177, 20354, 40708, 50885, 81416, 101770, 203540, 407080, 1964161, 3928322, 7856644, 9820805, 15713288, 19641610, 39283220, 78566440]

約数ペア:

[(1, 78566440), (2, 39283220), (4, 19641610), (5, 15713288), (8, 9820805), (10, 7856644), (20, 3928322), (40, 1964161), (193, 407080), (386, 203540), (772, 101770), (965, 81416), (1544, 50885), (1930, 40708), (3860, 20354), (7720, 10177)]