77775920

素因数分解:

$2^4\times 5^1\times {\mathrm{972199}}^1$

素因数の和:972212

約数の個数: 20

約数和(自身を含む): 180829200

約数和(自身を除く): 103053280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 972199, 1944398, 3888796, 4860995, 7777592, 9721990, 15555184, 19443980, 38887960, 77775920]

約数ペア:

[(1, 77775920), (2, 38887960), (4, 19443980), (5, 15555184), (8, 9721990), (10, 7777592), (16, 4860995), (20, 3888796), (40, 1944398), (80, 972199)]