2758455

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{139}}^1$

素因数の和:170

約数の個数: 60

約数和(自身を含む): 5793480

約数和(自身を除く): 3035025

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 139, 147, 189, 245, 315, 405, 417, 441, 567, 695, 735, 945, 973, 1251, 1323, 2085, 2205, 2835, 2919, 3753, 3969, 4865, 6255, 6615, 6811, 8757, 11259, 14595, 18765, 19845, 20433, 26271, 34055, 43785, 56295, 61299, 78813, 102165, 131355, 183897, 306495, 394065, 551691, 919485, 2758455]

約数ペア:

[(1, 2758455), (3, 919485), (5, 551691), (7, 394065), (9, 306495), (15, 183897), (21, 131355), (27, 102165), (35, 78813), (45, 61299), (49, 56295), (63, 43785), (81, 34055), (105, 26271), (135, 20433), (139, 19845), (147, 18765), (189, 14595), (245, 11259), (315, 8757), (405, 6811), (417, 6615), (441, 6255), (567, 4865), (695, 3969), (735, 3753), (945, 2919), (973, 2835), (1251, 2205), (1323, 2085)]