20644250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7507}}^1$

素因数の和:7535

約数の個数: 32

約数和(自身を含む): 42164928

約数和(自身を除く): 21520678

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7507, 15014, 37535, 75070, 82577, 165154, 187675, 375350, 412885, 825770, 938375, 1876750, 2064425, 4128850, 10322125, 20644250]

約数ペア:

[(1, 20644250), (2, 10322125), (5, 4128850), (10, 2064425), (11, 1876750), (22, 938375), (25, 825770), (50, 412885), (55, 375350), (110, 187675), (125, 165154), (250, 82577), (275, 75070), (550, 37535), (1375, 15014), (2750, 7507)]