28380495

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 54286848

約数和(自身を除く): 25906353

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 101, 131, 143, 165, 195, 303, 393, 429, 505, 655, 715, 1111, 1313, 1441, 1515, 1703, 1965, 2145, 3333, 3939, 4323, 5109, 5555, 6565, 7205, 8515, 13231, 14443, 16665, 18733, 19695, 21615, 25545, 39693, 43329, 56199, 66155, 72215, 93665, 145541, 172003, 198465, 216645, 280995, 436623, 516009, 727705, 860015, 1892033, 2183115, 2580045, 5676099, 9460165, 28380495]

約数ペア:

[(1, 28380495), (3, 9460165), (5, 5676099), (11, 2580045), (13, 2183115), (15, 1892033), (33, 860015), (39, 727705), (55, 516009), (65, 436623), (101, 280995), (131, 216645), (143, 198465), (165, 172003), (195, 145541), (303, 93665), (393, 72215), (429, 66155), (505, 56199), (655, 43329), (715, 39693), (1111, 25545), (1313, 21615), (1441, 19695), (1515, 18733), (1703, 16665), (1965, 14443), (2145, 13231), (3333, 8515), (3939, 7205), (4323, 6565), (5109, 5555)]