13123180

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1913}}^1$

素因数の和:1943

約数の個数: 48

約数和(自身を含む): 32155200

約数和(自身を除く): 19032020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 1913, 3430, 3826, 6860, 7652, 9565, 13391, 19130, 26782, 38260, 53564, 66955, 93737, 133910, 187474, 267820, 374948, 468685, 656159, 937370, 1312318, 1874740, 2624636, 3280795, 6561590, 13123180]

約数ペア:

[(1, 13123180), (2, 6561590), (4, 3280795), (5, 2624636), (7, 1874740), (10, 1312318), (14, 937370), (20, 656159), (28, 468685), (35, 374948), (49, 267820), (70, 187474), (98, 133910), (140, 93737), (196, 66955), (245, 53564), (343, 38260), (490, 26782), (686, 19130), (980, 13391), (1372, 9565), (1715, 7652), (1913, 6860), (3430, 3826)]