81050480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1433}}^1$

素因数の和:1554

約数の個数: 80

約数和(自身を含む): 217646784

約数和(自身を除く): 136596304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 101, 112, 140, 202, 280, 404, 505, 560, 707, 808, 1010, 1414, 1433, 1616, 2020, 2828, 2866, 3535, 4040, 5656, 5732, 7070, 7165, 8080, 10031, 11312, 11464, 14140, 14330, 20062, 22928, 28280, 28660, 40124, 50155, 56560, 57320, 80248, 100310, 114640, 144733, 160496, 200620, 289466, 401240, 578932, 723665, 802480, 1013131, 1157864, 1447330, 2026262, 2315728, 2894660, 4052524, 5065655, 5789320, 8105048, 10131310, 11578640, 16210096, 20262620, 40525240, 81050480]

約数ペア:

[(1, 81050480), (2, 40525240), (4, 20262620), (5, 16210096), (7, 11578640), (8, 10131310), (10, 8105048), (14, 5789320), (16, 5065655), (20, 4052524), (28, 2894660), (35, 2315728), (40, 2026262), (56, 1447330), (70, 1157864), (80, 1013131), (101, 802480), (112, 723665), (140, 578932), (202, 401240), (280, 289466), (404, 200620), (505, 160496), (560, 144733), (707, 114640), (808, 100310), (1010, 80248), (1414, 57320), (1433, 56560), (1616, 50155), (2020, 40124), (2828, 28660), (2866, 28280), (3535, 22928), (4040, 20062), (5656, 14330), (5732, 14140), (7070, 11464), (7165, 11312), (8080, 10031)]