1066640

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:279

約数の個数: 40

約数和(自身を含む): 2529600

約数和(自身を除く): 1462960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 199, 268, 335, 398, 536, 670, 796, 995, 1072, 1340, 1592, 1990, 2680, 3184, 3980, 5360, 7960, 13333, 15920, 26666, 53332, 66665, 106664, 133330, 213328, 266660, 533320, 1066640]

約数ペア:

[(1, 1066640), (2, 533320), (4, 266660), (5, 213328), (8, 133330), (10, 106664), (16, 66665), (20, 53332), (40, 26666), (67, 15920), (80, 13333), (134, 7960), (199, 5360), (268, 3980), (335, 3184), (398, 2680), (536, 1990), (670, 1592), (796, 1340), (995, 1072)]