20020112

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4157}}^1$

素因数の和:4215

約数の個数: 40

約数和(自身を含む): 45372096

約数和(自身を除く): 25351984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4157, 4816, 8314, 16628, 29099, 33256, 58198, 66512, 116396, 178751, 232792, 357502, 465584, 715004, 1251257, 1430008, 2502514, 2860016, 5005028, 10010056, 20020112]

約数ペア:

[(1, 20020112), (2, 10010056), (4, 5005028), (7, 2860016), (8, 2502514), (14, 1430008), (16, 1251257), (28, 715004), (43, 465584), (56, 357502), (86, 232792), (112, 178751), (172, 116396), (301, 66512), (344, 58198), (602, 33256), (688, 29099), (1204, 16628), (2408, 8314), (4157, 4816)]