81090110

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{261581}}^1$

素因数の和:261619

約数の個数: 16

約数和(自身を含む): 150671232

約数和(自身を除く): 69581122

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 261581, 523162, 1307905, 2615810, 8109011, 16218022, 40545055, 81090110]

約数ペア:

[(1, 81090110), (2, 40545055), (5, 16218022), (10, 8109011), (31, 2615810), (62, 1307905), (155, 523162), (310, 261581)]