2389905

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{281}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 4927104

約数和(自身を除く): 2537199

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 281, 315, 405, 567, 843, 945, 1215, 1405, 1701, 1967, 2529, 2835, 4215, 5901, 7587, 8505, 9835, 12645, 17703, 22761, 29505, 37935, 53109, 68283, 88515, 113805, 159327, 265545, 341415, 477981, 796635, 2389905]

約数ペア:

[(1, 2389905), (3, 796635), (5, 477981), (7, 341415), (9, 265545), (15, 159327), (21, 113805), (27, 88515), (35, 68283), (45, 53109), (63, 37935), (81, 29505), (105, 22761), (135, 17703), (189, 12645), (243, 9835), (281, 8505), (315, 7587), (405, 5901), (567, 4215), (843, 2835), (945, 2529), (1215, 1967), (1405, 1701)]