18217962005

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{281}}^1\times {\mathrm{1997}}^1$

素因数の和:2477

約数の個数: 32

約数和(自身を含む): 22609559808

約数和(自身を除く): 4391597803

約数列:

[1, 5, 43, 151, 215, 281, 755, 1405, 1997, 6493, 9985, 12083, 32465, 42431, 60415, 85871, 212155, 301547, 429355, 561157, 1507735, 1824533, 2805785, 9122665, 12966521, 24129751, 64832605, 84734707, 120648755, 423673535, 3643592401, 18217962005]

約数ペア:

[(1, 18217962005), (5, 3643592401), (43, 423673535), (151, 120648755), (215, 84734707), (281, 64832605), (755, 24129751), (1405, 12966521), (1997, 9122665), (6493, 2805785), (9985, 1824533), (12083, 1507735), (32465, 561157), (42431, 429355), (60415, 301547), (85871, 212155)]