80812720

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15077}}^1$

素因数の和:15157

約数の個数: 40

約数和(自身を含む): 190706544

約数和(自身を除く): 109893824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 15077, 30154, 60308, 75385, 120616, 150770, 241232, 301540, 603080, 1010159, 1206160, 2020318, 4040636, 5050795, 8081272, 10101590, 16162544, 20203180, 40406360, 80812720]

約数ペア:

[(1, 80812720), (2, 40406360), (4, 20203180), (5, 16162544), (8, 10101590), (10, 8081272), (16, 5050795), (20, 4040636), (40, 2020318), (67, 1206160), (80, 1010159), (134, 603080), (268, 301540), (335, 241232), (536, 150770), (670, 120616), (1072, 75385), (1340, 60308), (2680, 30154), (5360, 15077)]