20103684880

素因数分解:

$2^4\times 5^1\times {\mathrm{2273}}^1\times {\mathrm{110557}}^1$

素因数の和:112843

約数の個数: 40

約数和(自身を含む): 46762053912

約数和(自身を除く): 26658369032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2273, 4546, 9092, 11365, 18184, 22730, 36368, 45460, 90920, 110557, 181840, 221114, 442228, 552785, 884456, 1105570, 1768912, 2211140, 4422280, 8844560, 251296061, 502592122, 1005184244, 1256480305, 2010368488, 2512960610, 4020736976, 5025921220, 10051842440, 20103684880]

約数ペア:

[(1, 20103684880), (2, 10051842440), (4, 5025921220), (5, 4020736976), (8, 2512960610), (10, 2010368488), (16, 1256480305), (20, 1005184244), (40, 502592122), (80, 251296061), (2273, 8844560), (4546, 4422280), (9092, 2211140), (11365, 1768912), (18184, 1105570), (22730, 884456), (36368, 552785), (45460, 442228), (90920, 221114), (110557, 181840)]