217766540

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{83117}}^1$

素因数の和:83257

約数の個数: 24

約数和(自身を含む): 460806192

約数和(自身を除く): 243039652

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 83117, 166234, 332468, 415585, 831170, 1662340, 10888327, 21776654, 43553308, 54441635, 108883270, 217766540]

約数ペア:

[(1, 217766540), (2, 108883270), (4, 54441635), (5, 43553308), (10, 21776654), (20, 10888327), (131, 1662340), (262, 831170), (524, 415585), (655, 332468), (1310, 166234), (2620, 83117)]