20806561645

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{465107}}^1$

素因数の和:465524

約数の個数: 16

約数和(自身を含む): 26120465280

約数和(自身を除く): 5313903635

約数列:

[1, 5, 23, 115, 389, 1945, 8947, 44735, 465107, 2325535, 10697461, 53487305, 180926623, 904633115, 4161312329, 20806561645]

約数ペア:

[(1, 20806561645), (5, 4161312329), (23, 904633115), (115, 180926623), (389, 53487305), (1945, 10697461), (8947, 2325535), (44735, 465107)]