20165284888

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1\times {\mathrm{4651}}^1$

素因数の和:5360

約数の個数: 64

約数和(自身を含む): 43609708800

約数和(自身を除く): 23444423912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 557, 973, 1112, 1114, 1946, 2228, 3892, 3899, 4456, 4651, 7784, 7798, 9302, 15596, 18604, 31192, 32557, 37208, 65114, 77423, 130228, 154846, 260456, 309692, 541961, 619384, 646489, 1083922, 1292978, 2167844, 2585956, 2590607, 4335688, 4525423, 5171912, 5181214, 9050846, 10362428, 18101692, 18134249, 20724856, 36203384, 36268498, 72536996, 145073992, 360094373, 720188746, 1440377492, 2520660611, 2880754984, 5041321222, 10082642444, 20165284888]

約数ペア:

[(1, 20165284888), (2, 10082642444), (4, 5041321222), (7, 2880754984), (8, 2520660611), (14, 1440377492), (28, 720188746), (56, 360094373), (139, 145073992), (278, 72536996), (556, 36268498), (557, 36203384), (973, 20724856), (1112, 18134249), (1114, 18101692), (1946, 10362428), (2228, 9050846), (3892, 5181214), (3899, 5171912), (4456, 4525423), (4651, 4335688), (7784, 2590607), (7798, 2585956), (9302, 2167844), (15596, 1292978), (18604, 1083922), (31192, 646489), (32557, 619384), (37208, 541961), (65114, 309692), (77423, 260456), (130228, 154846)]