81676960

素因数分解:

$2^5\times 5^1\times {\mathrm{510481}}^1$

素因数の和:510496

約数の個数: 24

約数和(自身を含む): 192962196

約数和(自身を除く): 111285236

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 510481, 1020962, 2041924, 2552405, 4083848, 5104810, 8167696, 10209620, 16335392, 20419240, 40838480, 81676960]

約数ペア:

[(1, 81676960), (2, 40838480), (4, 20419240), (5, 16335392), (8, 10209620), (10, 8167696), (16, 5104810), (20, 4083848), (32, 2552405), (40, 2041924), (80, 1020962), (160, 510481)]