28026765

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2083}}^1$

素因数の和:2130

約数の個数: 48

約数和(自身を含む): 54617472

約数和(自身を除く): 26590707

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 897, 1035, 1495, 2083, 2691, 4485, 6249, 10415, 13455, 18747, 27079, 31245, 47909, 81237, 93735, 135395, 143727, 239545, 243711, 406185, 431181, 622817, 718635, 1218555, 1868451, 2155905, 3114085, 5605353, 9342255, 28026765]

約数ペア:

[(1, 28026765), (3, 9342255), (5, 5605353), (9, 3114085), (13, 2155905), (15, 1868451), (23, 1218555), (39, 718635), (45, 622817), (65, 431181), (69, 406185), (115, 243711), (117, 239545), (195, 143727), (207, 135395), (299, 93735), (345, 81237), (585, 47909), (897, 31245), (1035, 27079), (1495, 18747), (2083, 13455), (2691, 10415), (4485, 6249)]