217403780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{988199}}^1$

素因数の和:988219

約数の個数: 24

約数和(自身を含む): 498052800

約数和(自身を除く): 280649020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 988199, 1976398, 3952796, 4940995, 9881990, 10870189, 19763980, 21740378, 43480756, 54350945, 108701890, 217403780]

約数ペア:

[(1, 217403780), (2, 108701890), (4, 54350945), (5, 43480756), (10, 21740378), (11, 19763980), (20, 10870189), (22, 9881990), (44, 4940995), (55, 3952796), (110, 1976398), (220, 988199)]