256947208

素因数分解:

$2^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{23057}}^1$

素因数の和:23269

約数の個数: 32

約数和(自身を含む): 553392000

約数和(自身を除く): 296444792

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 199, 398, 796, 1393, 1592, 2786, 5572, 11144, 23057, 46114, 92228, 161399, 184456, 322798, 645596, 1291192, 4588343, 9176686, 18353372, 32118401, 36706744, 64236802, 128473604, 256947208]

約数ペア:

[(1, 256947208), (2, 128473604), (4, 64236802), (7, 36706744), (8, 32118401), (14, 18353372), (28, 9176686), (56, 4588343), (199, 1291192), (398, 645596), (796, 322798), (1393, 184456), (1592, 161399), (2786, 92228), (5572, 46114), (11144, 23057)]