77891905

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{887}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 115766784

約数和(自身を除く): 37874879

約数列:

[1, 5, 7, 13, 35, 65, 91, 193, 455, 887, 965, 1351, 2509, 4435, 6209, 6755, 11531, 12545, 17563, 31045, 57655, 80717, 87815, 171191, 403585, 855955, 1198337, 2225483, 5991685, 11127415, 15578381, 77891905]

約数ペア:

[(1, 77891905), (5, 15578381), (7, 11127415), (13, 5991685), (35, 2225483), (65, 1198337), (91, 855955), (193, 403585), (455, 171191), (887, 87815), (965, 80717), (1351, 57655), (2509, 31045), (4435, 17563), (6209, 12545), (6755, 11531)]