28441270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19889}}^1$

素因数の和:19920

約数の個数: 32

約数和(自身を含む): 60147360

約数和(自身を除く): 31706090

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 19889, 39778, 99445, 198890, 218779, 258557, 437558, 517114, 1093895, 1292785, 2187790, 2585570, 2844127, 5688254, 14220635, 28441270]

約数ペア:

[(1, 28441270), (2, 14220635), (5, 5688254), (10, 2844127), (11, 2585570), (13, 2187790), (22, 1292785), (26, 1093895), (55, 517114), (65, 437558), (110, 258557), (130, 218779), (143, 198890), (286, 99445), (715, 39778), (1430, 19889)]