161844019840

素因数分解:

$2^7\times 5^1\times {\mathrm{252881281}}^1$

素因数の和:252881300

約数の個数: 32

約数和(自身を含む): 386908361460

約数和(自身を除く): 225064341620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 252881281, 505762562, 1011525124, 1264406405, 2023050248, 2528812810, 4046100496, 5057625620, 8092200992, 10115251240, 16184401984, 20230502480, 32368803968, 40461004960, 80922009920, 161844019840]

約数ペア:

[(1, 161844019840), (2, 80922009920), (4, 40461004960), (5, 32368803968), (8, 20230502480), (10, 16184401984), (16, 10115251240), (20, 8092200992), (32, 5057625620), (40, 4046100496), (64, 2528812810), (80, 2023050248), (128, 1264406405), (160, 1011525124), (320, 505762562), (640, 252881281)]