20960156

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 23069284

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 83, 116, 166, 203, 311, 332, 406, 581, 622, 812, 1162, 1244, 2177, 2324, 2407, 4354, 4814, 8708, 9019, 9628, 16849, 18038, 25813, 33698, 36076, 51626, 63133, 67396, 103252, 126266, 180691, 252532, 361382, 722764, 748577, 1497154, 2994308, 5240039, 10480078, 20960156]

約数ペア:

[(1, 20960156), (2, 10480078), (4, 5240039), (7, 2994308), (14, 1497154), (28, 748577), (29, 722764), (58, 361382), (83, 252532), (116, 180691), (166, 126266), (203, 103252), (311, 67396), (332, 63133), (406, 51626), (581, 36076), (622, 33698), (812, 25813), (1162, 18038), (1244, 16849), (2177, 9628), (2324, 9019), (2407, 8708), (4354, 4814)]