128988580

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{18803}}^1$

素因数の和:18833

約数の個数: 48

約数和(自身を含む): 315907200

約数和(自身を除く): 186918620

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, 3430, 6860, 18803, 37606, 75212, 94015, 131621, 188030, 263242, 376060, 526484, 658105, 921347, 1316210, 1842694, 2632420, 3685388, 4606735, 6449429, 9213470, 12898858, 18426940, 25797716, 32247145, 64494290, 128988580]

約数ペア:

[(1, 128988580), (2, 64494290), (4, 32247145), (5, 25797716), (7, 18426940), (10, 12898858), (14, 9213470), (20, 6449429), (28, 4606735), (35, 3685388), (49, 2632420), (70, 1842694), (98, 1316210), (140, 921347), (196, 658105), (245, 526484), (343, 376060), (490, 263242), (686, 188030), (980, 131621), (1372, 94015), (1715, 75212), (3430, 37606), (6860, 18803)]