20628248

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1031}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 40309920

約数和(自身を除く): 19681672

約数列:

[1, 2, 4, 8, 41, 61, 82, 122, 164, 244, 328, 488, 1031, 2062, 2501, 4124, 5002, 8248, 10004, 20008, 42271, 62891, 84542, 125782, 169084, 251564, 338168, 503128, 2578531, 5157062, 10314124, 20628248]

約数ペア:

[(1, 20628248), (2, 10314124), (4, 5157062), (8, 2578531), (41, 503128), (61, 338168), (82, 251564), (122, 169084), (164, 125782), (244, 84542), (328, 62891), (488, 42271), (1031, 20008), (2062, 10004), (2501, 8248), (4124, 5002)]