681440

素因数分解:

$2^5\times 5^1\times {\mathrm{4259}}^1$

素因数の和:4274

約数の個数: 24

約数和(自身を含む): 1610280

約数和(自身を除く): 928840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 4259, 8518, 17036, 21295, 34072, 42590, 68144, 85180, 136288, 170360, 340720, 681440]

約数ペア:

[(1, 681440), (2, 340720), (4, 170360), (5, 136288), (8, 85180), (10, 68144), (16, 42590), (20, 34072), (32, 21295), (40, 17036), (80, 8518), (160, 4259)]