201638920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{102877}}^1$

素因数の和:102902

約数の個数: 48

約数和(自身を含む): 527764140

約数和(自身を除く): 326125220

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 102877, 205754, 411508, 514385, 720139, 823016, 1028770, 1440278, 2057540, 2880556, 3600695, 4115080, 5040973, 5761112, 7201390, 10081946, 14402780, 20163892, 25204865, 28805560, 40327784, 50409730, 100819460, 201638920]

約数ペア:

[(1, 201638920), (2, 100819460), (4, 50409730), (5, 40327784), (7, 28805560), (8, 25204865), (10, 20163892), (14, 14402780), (20, 10081946), (28, 7201390), (35, 5761112), (40, 5040973), (49, 4115080), (56, 3600695), (70, 2880556), (98, 2057540), (140, 1440278), (196, 1028770), (245, 823016), (280, 720139), (392, 514385), (490, 411508), (980, 205754), (1960, 102877)]