20121571312

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{2843}}^1\times {\mathrm{10789}}^1$

素因数の和:13681

約数の個数: 40

約数和(自身を含む): 39954161520

約数和(自身を除く): 19832590208

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 2843, 5686, 10789, 11372, 21578, 22744, 43156, 45488, 86312, 116563, 172624, 233126, 442349, 466252, 884698, 932504, 1769396, 1865008, 3538792, 7077584, 30673127, 61346254, 122692508, 245385016, 490770032, 1257598207, 2515196414, 5030392828, 10060785656, 20121571312]

約数ペア:

[(1, 20121571312), (2, 10060785656), (4, 5030392828), (8, 2515196414), (16, 1257598207), (41, 490770032), (82, 245385016), (164, 122692508), (328, 61346254), (656, 30673127), (2843, 7077584), (5686, 3538792), (10789, 1865008), (11372, 1769396), (21578, 932504), (22744, 884698), (43156, 466252), (45488, 442349), (86312, 233126), (116563, 172624)]