20720964

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{5413}}^1$

素因数の和:5460

約数の個数: 48

約数和(自身を含む): 54573120

約数和(自身を除く): 33852156

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 29, 33, 44, 58, 66, 87, 116, 132, 174, 319, 348, 638, 957, 1276, 1914, 3828, 5413, 10826, 16239, 21652, 32478, 59543, 64956, 119086, 156977, 178629, 238172, 313954, 357258, 470931, 627908, 714516, 941862, 1726747, 1883724, 3453494, 5180241, 6906988, 10360482, 20720964]

約数ペア:

[(1, 20720964), (2, 10360482), (3, 6906988), (4, 5180241), (6, 3453494), (11, 1883724), (12, 1726747), (22, 941862), (29, 714516), (33, 627908), (44, 470931), (58, 357258), (66, 313954), (87, 238172), (116, 178629), (132, 156977), (174, 119086), (319, 64956), (348, 59543), (638, 32478), (957, 21652), (1276, 16239), (1914, 10826), (3828, 5413)]