20305355

素因数分解:

$5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1237}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 28790928

約数和(自身を除く): 8485573

約数列:

[1, 5, 7, 35, 49, 67, 245, 335, 469, 1237, 2345, 3283, 6185, 8659, 16415, 43295, 60613, 82879, 303065, 414395, 580153, 2900765, 4061071, 20305355]

約数ペア:

[(1, 20305355), (5, 4061071), (7, 2900765), (35, 580153), (49, 414395), (67, 303065), (245, 82879), (335, 60613), (469, 43295), (1237, 16415), (2345, 8659), (3283, 6185)]