81857456

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{547}}^1$

素因数の和:801

約数の個数: 40

約数和(自身を含む): 163084800

約数和(自身を除く): 81227344

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 199, 376, 398, 547, 752, 796, 1094, 1592, 2188, 3184, 4376, 8752, 9353, 18706, 25709, 37412, 51418, 74824, 102836, 108853, 149648, 205672, 217706, 411344, 435412, 870824, 1741648, 5116091, 10232182, 20464364, 40928728, 81857456]

約数ペア:

[(1, 81857456), (2, 40928728), (4, 20464364), (8, 10232182), (16, 5116091), (47, 1741648), (94, 870824), (188, 435412), (199, 411344), (376, 217706), (398, 205672), (547, 149648), (752, 108853), (796, 102836), (1094, 74824), (1592, 51418), (2188, 37412), (3184, 25709), (4376, 18706), (8752, 9353)]