20293420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3371}}^1$

素因数の和:3430

約数の個数: 48

約数和(自身を含む): 49851648

約数和(自身を除く): 29558228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 3371, 6020, 6742, 13484, 16855, 23597, 33710, 47194, 67420, 94388, 117985, 144953, 235970, 289906, 471940, 579812, 724765, 1014671, 1449530, 2029342, 2899060, 4058684, 5073355, 10146710, 20293420]

約数ペア:

[(1, 20293420), (2, 10146710), (4, 5073355), (5, 4058684), (7, 2899060), (10, 2029342), (14, 1449530), (20, 1014671), (28, 724765), (35, 579812), (43, 471940), (70, 289906), (86, 235970), (140, 144953), (172, 117985), (215, 94388), (301, 67420), (430, 47194), (602, 33710), (860, 23597), (1204, 16855), (1505, 13484), (3010, 6742), (3371, 6020)]