81800390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{19157}}^1$

素因数の和:19232

約数の個数: 32

約数和(自身を含む): 171042624

約数和(自身を除く): 89242234

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 2135, 4270, 19157, 38314, 95785, 134099, 191570, 268198, 670495, 1168577, 1340990, 2337154, 5842885, 8180039, 11685770, 16360078, 40900195, 81800390]

約数ペア:

[(1, 81800390), (2, 40900195), (5, 16360078), (7, 11685770), (10, 8180039), (14, 5842885), (35, 2337154), (61, 1340990), (70, 1168577), (122, 670495), (305, 268198), (427, 191570), (610, 134099), (854, 95785), (2135, 38314), (4270, 19157)]