28681965

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 56044800

約数和(自身を除く): 27362835

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 59, 65, 117, 135, 177, 195, 277, 295, 351, 531, 585, 767, 831, 885, 1385, 1593, 1755, 2301, 2493, 2655, 3601, 3835, 4155, 6903, 7479, 7965, 10803, 11505, 12465, 16343, 18005, 20709, 32409, 34515, 37395, 49029, 54015, 81715, 97227, 103545, 147087, 162045, 212459, 245145, 441261, 486135, 637377, 735435, 1062295, 1912131, 2206305, 3186885, 5736393, 9560655, 28681965]

約数ペア:

[(1, 28681965), (3, 9560655), (5, 5736393), (9, 3186885), (13, 2206305), (15, 1912131), (27, 1062295), (39, 735435), (45, 637377), (59, 486135), (65, 441261), (117, 245145), (135, 212459), (177, 162045), (195, 147087), (277, 103545), (295, 97227), (351, 81715), (531, 54015), (585, 49029), (767, 37395), (831, 34515), (885, 32409), (1385, 20709), (1593, 18005), (1755, 16343), (2301, 12465), (2493, 11505), (2655, 10803), (3601, 7965), (3835, 7479), (4155, 6903)]