20880808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 44452800

約数和(自身を除く): 23571992

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 59, 82, 83, 104, 118, 164, 166, 236, 328, 332, 472, 533, 664, 767, 1066, 1079, 1534, 2132, 2158, 2419, 3068, 3403, 4264, 4316, 4838, 4897, 6136, 6806, 8632, 9676, 9794, 13612, 19352, 19588, 27224, 31447, 39176, 44239, 62894, 63661, 88478, 125788, 127322, 176956, 200777, 251576, 254644, 353912, 401554, 509288, 803108, 1606216, 2610101, 5220202, 10440404, 20880808]

約数ペア:

[(1, 20880808), (2, 10440404), (4, 5220202), (8, 2610101), (13, 1606216), (26, 803108), (41, 509288), (52, 401554), (59, 353912), (82, 254644), (83, 251576), (104, 200777), (118, 176956), (164, 127322), (166, 125788), (236, 88478), (328, 63661), (332, 62894), (472, 44239), (533, 39176), (664, 31447), (767, 27224), (1066, 19588), (1079, 19352), (1534, 13612), (2132, 9794), (2158, 9676), (2419, 8632), (3068, 6806), (3403, 6136), (4264, 4897), (4316, 4838)]