81703190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^3\times {\mathrm{1663}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 156349440

約数和(自身を除く): 74646250

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 1663, 2890, 3326, 4913, 8315, 9826, 16630, 24565, 28271, 49130, 56542, 141355, 282710, 480607, 961214, 2403035, 4806070, 8170319, 16340638, 40851595, 81703190]

約数ペア:

[(1, 81703190), (2, 40851595), (5, 16340638), (10, 8170319), (17, 4806070), (34, 2403035), (85, 961214), (170, 480607), (289, 282710), (578, 141355), (1445, 56542), (1663, 49130), (2890, 28271), (3326, 24565), (4913, 16630), (8315, 9826)]