20190695

素因数分解:

$5^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 28867200

約数和(自身を除く): 8676505

約数列:

[1, 5, 7, 35, 49, 61, 193, 245, 305, 343, 427, 965, 1351, 1715, 2135, 2989, 6755, 9457, 11773, 14945, 20923, 47285, 58865, 66199, 82411, 104615, 330995, 412055, 576877, 2884385, 4038139, 20190695]

約数ペア:

[(1, 20190695), (5, 4038139), (7, 2884385), (35, 576877), (49, 412055), (61, 330995), (193, 104615), (245, 82411), (305, 66199), (343, 58865), (427, 47285), (965, 20923), (1351, 14945), (1715, 11773), (2135, 9457), (2989, 6755)]