208021940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1485871}}^1$

素因数の和:1485887

約数の個数: 24

約数和(自身を含む): 499252992

約数和(自身を除く): 291231052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1485871, 2971742, 5943484, 7429355, 10401097, 14858710, 20802194, 29717420, 41604388, 52005485, 104010970, 208021940]

約数ペア:

[(1, 208021940), (2, 104010970), (4, 52005485), (5, 41604388), (7, 29717420), (10, 20802194), (14, 14858710), (20, 10401097), (28, 7429355), (35, 5943484), (70, 2971742), (140, 1485871)]