19935020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 51480576

約数和(自身を除く): 31545556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 41, 46, 70, 82, 92, 115, 140, 151, 161, 164, 205, 230, 287, 302, 322, 410, 460, 574, 604, 644, 755, 805, 820, 943, 1057, 1148, 1435, 1510, 1610, 1886, 2114, 2870, 3020, 3220, 3473, 3772, 4228, 4715, 5285, 5740, 6191, 6601, 6946, 9430, 10570, 12382, 13202, 13892, 17365, 18860, 21140, 24311, 24764, 26404, 30955, 33005, 34730, 43337, 48622, 61910, 66010, 69460, 86674, 97244, 121555, 123820, 132020, 142393, 173348, 216685, 243110, 284786, 433370, 486220, 569572, 711965, 866740, 996751, 1423930, 1993502, 2847860, 3987004, 4983755, 9967510, 19935020]

約数ペア:

[(1, 19935020), (2, 9967510), (4, 4983755), (5, 3987004), (7, 2847860), (10, 1993502), (14, 1423930), (20, 996751), (23, 866740), (28, 711965), (35, 569572), (41, 486220), (46, 433370), (70, 284786), (82, 243110), (92, 216685), (115, 173348), (140, 142393), (151, 132020), (161, 123820), (164, 121555), (205, 97244), (230, 86674), (287, 69460), (302, 66010), (322, 61910), (410, 48622), (460, 43337), (574, 34730), (604, 33005), (644, 30955), (755, 26404), (805, 24764), (820, 24311), (943, 21140), (1057, 18860), (1148, 17365), (1435, 13892), (1510, 13202), (1610, 12382), (1886, 10570), (2114, 9430), (2870, 6946), (3020, 6601), (3220, 6191), (3473, 5740), (3772, 5285), (4228, 4715)]