81766790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{166871}}^1$

素因数の和:166892

約数の個数: 24

約数和(自身を含む): 171210672

約数和(自身を除く): 89443882

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 166871, 333742, 834355, 1168097, 1668710, 2336194, 5840485, 8176679, 11680970, 16353358, 40883395, 81766790]

約数ペア:

[(1, 81766790), (2, 40883395), (5, 16353358), (7, 11680970), (10, 8176679), (14, 5840485), (35, 2336194), (49, 1668710), (70, 1168097), (98, 834355), (245, 333742), (490, 166871)]