20265070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 44706816

約数和(自身を除く): 24441746

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 41, 46, 70, 82, 115, 161, 205, 230, 287, 307, 322, 410, 574, 614, 805, 943, 1435, 1535, 1610, 1886, 2149, 2870, 3070, 4298, 4715, 6601, 7061, 9430, 10745, 12587, 13202, 14122, 21490, 25174, 33005, 35305, 49427, 62935, 66010, 70610, 88109, 98854, 125870, 176218, 247135, 289501, 440545, 494270, 579002, 881090, 1447505, 2026507, 2895010, 4053014, 10132535, 20265070]

約数ペア:

[(1, 20265070), (2, 10132535), (5, 4053014), (7, 2895010), (10, 2026507), (14, 1447505), (23, 881090), (35, 579002), (41, 494270), (46, 440545), (70, 289501), (82, 247135), (115, 176218), (161, 125870), (205, 98854), (230, 88109), (287, 70610), (307, 66010), (322, 62935), (410, 49427), (574, 35305), (614, 33005), (805, 25174), (943, 21490), (1435, 14122), (1535, 13202), (1610, 12587), (1886, 10745), (2149, 9430), (2870, 7061), (3070, 6601), (4298, 4715)]