20280015

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{64381}}^1$

素因数の和:64399

約数の個数: 24

約数和(自身を含む): 40174368

約数和(自身を除く): 19894353

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 64381, 193143, 321905, 450667, 579429, 965715, 1352001, 2253335, 2897145, 4056003, 6760005, 20280015]

約数ペア:

[(1, 20280015), (3, 6760005), (5, 4056003), (7, 2897145), (9, 2253335), (15, 1352001), (21, 965715), (35, 579429), (45, 450667), (63, 321905), (105, 193143), (315, 64381)]