8321180

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1213}}^1$

素因数の和:1243

約数の個数: 48

約数和(自身を含む): 20395200

約数和(自身を除く): 12074020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1213, 1372, 1715, 2426, 3430, 4852, 6065, 6860, 8491, 12130, 16982, 24260, 33964, 42455, 59437, 84910, 118874, 169820, 237748, 297185, 416059, 594370, 832118, 1188740, 1664236, 2080295, 4160590, 8321180]

約数ペア:

[(1, 8321180), (2, 4160590), (4, 2080295), (5, 1664236), (7, 1188740), (10, 832118), (14, 594370), (20, 416059), (28, 297185), (35, 237748), (49, 169820), (70, 118874), (98, 84910), (140, 59437), (196, 42455), (245, 33964), (343, 24260), (490, 16982), (686, 12130), (980, 8491), (1213, 6860), (1372, 6065), (1715, 4852), (2426, 3430)]