18572905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 6828695

約数列:

[1, 5, 13, 29, 59, 65, 145, 167, 295, 377, 767, 835, 1711, 1885, 2171, 3835, 4843, 8555, 9853, 10855, 22243, 24215, 49265, 62959, 111215, 128089, 285737, 314795, 640445, 1428685, 3714581, 18572905]

約数ペア:

[(1, 18572905), (5, 3714581), (13, 1428685), (29, 640445), (59, 314795), (65, 285737), (145, 128089), (167, 111215), (295, 62959), (377, 49265), (767, 24215), (835, 22243), (1711, 10855), (1885, 9853), (2171, 8555), (3835, 4843)]