77217880

素因数分解:

$2^3\times 5^1\times {\mathrm{1930447}}^1$

素因数の和:1930458

約数の個数: 16

約数和(自身を含む): 173740320

約数和(自身を除く): 96522440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1930447, 3860894, 7721788, 9652235, 15443576, 19304470, 38608940, 77217880]

約数ペア:

[(1, 77217880), (2, 38608940), (4, 19304470), (5, 15443576), (8, 9652235), (10, 7721788), (20, 3860894), (40, 1930447)]