20173768240

素因数分解:

$2^4\times 5^1\times {\mathrm{3643}}^1\times {\mathrm{69221}}^1$

素因数の和:72877

約数の個数: 40

約数和(自身を含む): 46917564048

約数和(自身を除く): 26743795808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3643, 7286, 14572, 18215, 29144, 36430, 58288, 69221, 72860, 138442, 145720, 276884, 291440, 346105, 553768, 692210, 1107536, 1384420, 2768840, 5537680, 252172103, 504344206, 1008688412, 1260860515, 2017376824, 2521721030, 4034753648, 5043442060, 10086884120, 20173768240]

約数ペア:

[(1, 20173768240), (2, 10086884120), (4, 5043442060), (5, 4034753648), (8, 2521721030), (10, 2017376824), (16, 1260860515), (20, 1008688412), (40, 504344206), (80, 252172103), (3643, 5537680), (7286, 2768840), (14572, 1384420), (18215, 1107536), (29144, 692210), (36430, 553768), (58288, 346105), (69221, 291440), (72860, 276884), (138442, 145720)]