20668264

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1033}}^1$

素因数の和:1141

約数の個数: 32

約数和(自身を含む): 40388040

約数和(自身を除く): 19719776

約数列:

[1, 2, 4, 8, 41, 61, 82, 122, 164, 244, 328, 488, 1033, 2066, 2501, 4132, 5002, 8264, 10004, 20008, 42353, 63013, 84706, 126026, 169412, 252052, 338824, 504104, 2583533, 5167066, 10334132, 20668264]

約数ペア:

[(1, 20668264), (2, 10334132), (4, 5167066), (8, 2583533), (41, 504104), (61, 338824), (82, 252052), (122, 169412), (164, 126026), (244, 84706), (328, 63013), (488, 42353), (1033, 20008), (2066, 10004), (2501, 8264), (4132, 5002)]