128371180

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{18713}}^1$

素因数の和:18743

約数の個数: 48

約数和(自身を含む): 314395200

約数和(自身を除く): 186024020

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, 18713, 37426, 74852, 93565, 130991, 187130, 261982, 374260, 523964, 654955, 916937, 1309910, 1833874, 2619820, 3667748, 4584685, 6418559, 9169370, 12837118, 18338740, 25674236, 32092795, 64185590, 128371180]

約数ペア:

[(1, 128371180), (2, 64185590), (4, 32092795), (5, 25674236), (7, 18338740), (10, 12837118), (14, 9169370), (20, 6418559), (28, 4584685), (35, 3667748), (49, 2619820), (70, 1833874), (98, 1309910), (140, 916937), (196, 654955), (245, 523964), (343, 374260), (490, 261982), (686, 187130), (980, 130991), (1372, 93565), (1715, 74852), (3430, 37426), (6860, 18713)]