20676720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{853}}^1$

素因数の和:970

約数の個数: 80

約数和(自身を含む): 64808352

約数和(自身を除く): 44131632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 101, 120, 202, 240, 303, 404, 505, 606, 808, 853, 1010, 1212, 1515, 1616, 1706, 2020, 2424, 2559, 3030, 3412, 4040, 4265, 4848, 5118, 6060, 6824, 8080, 8530, 10236, 12120, 12795, 13648, 17060, 20472, 24240, 25590, 34120, 40944, 51180, 68240, 86153, 102360, 172306, 204720, 258459, 344612, 430765, 516918, 689224, 861530, 1033836, 1292295, 1378448, 1723060, 2067672, 2584590, 3446120, 4135344, 5169180, 6892240, 10338360, 20676720]

約数ペア:

[(1, 20676720), (2, 10338360), (3, 6892240), (4, 5169180), (5, 4135344), (6, 3446120), (8, 2584590), (10, 2067672), (12, 1723060), (15, 1378448), (16, 1292295), (20, 1033836), (24, 861530), (30, 689224), (40, 516918), (48, 430765), (60, 344612), (80, 258459), (101, 204720), (120, 172306), (202, 102360), (240, 86153), (303, 68240), (404, 51180), (505, 40944), (606, 34120), (808, 25590), (853, 24240), (1010, 20472), (1212, 17060), (1515, 13648), (1616, 12795), (1706, 12120), (2020, 10236), (2424, 8530), (2559, 8080), (3030, 6824), (3412, 6060), (4040, 5118), (4265, 4848)]