520142980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3715307}}^1$

素因数の和:3715323

約数の個数: 24

約数和(自身を含む): 1248343488

約数和(自身を除く): 728200508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3715307, 7430614, 14861228, 18576535, 26007149, 37153070, 52014298, 74306140, 104028596, 130035745, 260071490, 520142980]

約数ペア:

[(1, 520142980), (2, 260071490), (4, 130035745), (5, 104028596), (7, 74306140), (10, 52014298), (14, 37153070), (20, 26007149), (28, 18576535), (35, 14861228), (70, 7430614), (140, 3715307)]