20100255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4073}}^1$

素因数の和:4135

約数の個数: 32

約数和(自身を含む): 37545984

約数和(自身を除く): 17445729

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4073, 4935, 12219, 20365, 28511, 61095, 85533, 142555, 191431, 427665, 574293, 957155, 1340017, 2871465, 4020051, 6700085, 20100255]

約数ペア:

[(1, 20100255), (3, 6700085), (5, 4020051), (7, 2871465), (15, 1340017), (21, 957155), (35, 574293), (47, 427665), (105, 191431), (141, 142555), (235, 85533), (329, 61095), (705, 28511), (987, 20365), (1645, 12219), (4073, 4935)]