29870180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 64456560

約数和(自身を除く): 34586380

約数列:

[1, 2, 4, 5, 10, 20, 89, 97, 173, 178, 194, 346, 356, 388, 445, 485, 692, 865, 890, 970, 1730, 1780, 1940, 3460, 8633, 15397, 16781, 17266, 30794, 33562, 34532, 43165, 61588, 67124, 76985, 83905, 86330, 153970, 167810, 172660, 307940, 335620, 1493509, 2987018, 5974036, 7467545, 14935090, 29870180]

約数ペア:

[(1, 29870180), (2, 14935090), (4, 7467545), (5, 5974036), (10, 2987018), (20, 1493509), (89, 335620), (97, 307940), (173, 172660), (178, 167810), (194, 153970), (346, 86330), (356, 83905), (388, 76985), (445, 67124), (485, 61588), (692, 43165), (865, 34532), (890, 33562), (970, 30794), (1730, 17266), (1780, 16781), (1940, 15397), (3460, 8633)]