1900949990

素因数分解:

$2^1\times 5^1\times {\mathrm{997}}^1\times {\mathrm{190667}}^1$

素因数の和:191671

約数の個数: 16

約数和(自身を含む): 3425159952

約数和(自身を除く): 1524209962

約数列:

[1, 2, 5, 10, 997, 1994, 4985, 9970, 190667, 381334, 953335, 1906670, 190094999, 380189998, 950474995, 1900949990]

約数ペア:

[(1, 1900949990), (2, 950474995), (5, 380189998), (10, 190094999), (997, 1906670), (1994, 953335), (4985, 381334), (9970, 190667)]