129700520

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{13567}}^1$

素因数の和:13817

約数の個数: 32

約数和(自身を含む): 293068800

約数和(自身を除く): 163368280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 13567, 27134, 54268, 67835, 108536, 135670, 271340, 542680, 3242513, 6485026, 12970052, 16212565, 25940104, 32425130, 64850260, 129700520]

約数ペア:

[(1, 129700520), (2, 64850260), (4, 32425130), (5, 25940104), (8, 16212565), (10, 12970052), (20, 6485026), (40, 3242513), (239, 542680), (478, 271340), (956, 135670), (1195, 108536), (1912, 67835), (2390, 54268), (4780, 27134), (9560, 13567)]