80053640

素因数分解:

$2^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{2543}}^1$

素因数の和:3341

約数の個数: 32

約数和(自身を含む): 180420480

約数和(自身を除く): 100366840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 787, 1574, 2543, 3148, 3935, 5086, 6296, 7870, 10172, 12715, 15740, 20344, 25430, 31480, 50860, 101720, 2001341, 4002682, 8005364, 10006705, 16010728, 20013410, 40026820, 80053640]

約数ペア:

[(1, 80053640), (2, 40026820), (4, 20013410), (5, 16010728), (8, 10006705), (10, 8005364), (20, 4002682), (40, 2001341), (787, 101720), (1574, 50860), (2543, 31480), (3148, 25430), (3935, 20344), (5086, 15740), (6296, 12715), (7870, 10172)]