78443885

素因数分解:

$5^1\times {\mathrm{13}}^3\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:274

約数の個数: 32

約数和(自身を含む): 105272160

約数和(自身を除く): 26828275

約数列:

[1, 5, 13, 37, 65, 169, 185, 193, 481, 845, 965, 2197, 2405, 2509, 6253, 7141, 10985, 12545, 31265, 32617, 35705, 81289, 92833, 163085, 406445, 424021, 464165, 1206829, 2120105, 6034145, 15688777, 78443885]

約数ペア:

[(1, 78443885), (5, 15688777), (13, 6034145), (37, 2120105), (65, 1206829), (169, 464165), (185, 424021), (193, 406445), (481, 163085), (845, 92833), (965, 81289), (2197, 35705), (2405, 32617), (2509, 31265), (6253, 12545), (7141, 10985)]