78786428

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{39631}}^1$

素因数の和:39713

約数の個数: 24

約数和(自身を含む): 159796224

約数和(自身を除く): 81009796

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 39631, 79262, 158524, 277417, 554834, 1109668, 2813801, 5627602, 11255204, 19696607, 39393214, 78786428]

約数ペア:

[(1, 78786428), (2, 39393214), (4, 19696607), (7, 11255204), (14, 5627602), (28, 2813801), (71, 1109668), (142, 554834), (284, 277417), (497, 158524), (994, 79262), (1988, 39631)]