13165840

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{827}}^1$

素因数の和:1039

約数の個数: 40

約数和(自身を含む): 30801600

約数和(自身を除く): 17635760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 827, 995, 1592, 1654, 1990, 3184, 3308, 3980, 4135, 6616, 7960, 8270, 13232, 15920, 16540, 33080, 66160, 164573, 329146, 658292, 822865, 1316584, 1645730, 2633168, 3291460, 6582920, 13165840]

約数ペア:

[(1, 13165840), (2, 6582920), (4, 3291460), (5, 2633168), (8, 1645730), (10, 1316584), (16, 822865), (20, 658292), (40, 329146), (80, 164573), (199, 66160), (398, 33080), (796, 16540), (827, 15920), (995, 13232), (1592, 8270), (1654, 7960), (1990, 6616), (3184, 4135), (3308, 3980)]