18205121080

素因数分解:

$2^3\times 5^1\times {\mathrm{58901}}^1\times {\mathrm{7727}}^1$

素因数の和:66639

約数の個数: 32

約数和(自身を含む): 40967519040

約数和(自身を除く): 22762397960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7727, 15454, 30908, 38635, 58901, 61816, 77270, 117802, 154540, 235604, 294505, 309080, 471208, 589010, 1178020, 2356040, 455128027, 910256054, 1820512108, 2275640135, 3641024216, 4551280270, 9102560540, 18205121080]

約数ペア:

[(1, 18205121080), (2, 9102560540), (4, 4551280270), (5, 3641024216), (8, 2275640135), (10, 1820512108), (20, 910256054), (40, 455128027), (7727, 2356040), (15454, 1178020), (30908, 589010), (38635, 471208), (58901, 309080), (61816, 294505), (77270, 235604), (117802, 154540)]