214978220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{54563}}^1$

素因数の和:54769

約数の個数: 24

約数和(自身を含む): 453754224

約数和(自身を除く): 238776004

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 54563, 109126, 218252, 272815, 545630, 1091260, 10748911, 21497822, 42995644, 53744555, 107489110, 214978220]

約数ペア:

[(1, 214978220), (2, 107489110), (4, 53744555), (5, 42995644), (10, 21497822), (20, 10748911), (197, 1091260), (394, 545630), (788, 272815), (985, 218252), (1970, 109126), (3940, 54563)]