1780493215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{541}}^1\times {\mathrm{1249}}^1$

素因数の和:1843

約数の個数: 32

約数和(自身を含む): 2341440000

約数和(自身を除く): 560946785

約数列:

[1, 5, 17, 31, 85, 155, 527, 541, 1249, 2635, 2705, 6245, 9197, 16771, 21233, 38719, 45985, 83855, 106165, 193595, 285107, 658223, 675709, 1425535, 3291115, 3378545, 11487053, 20946979, 57435265, 104734895, 356098643, 1780493215]

約数ペア:

[(1, 1780493215), (5, 356098643), (17, 104734895), (31, 57435265), (85, 20946979), (155, 11487053), (527, 3378545), (541, 3291115), (1249, 1425535), (2635, 675709), (2705, 658223), (6245, 285107), (9197, 193595), (16771, 106165), (21233, 83855), (38719, 45985)]