26815815

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1993}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 52258752

約数和(自身を除く): 25442937

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 897, 1035, 1495, 1993, 2691, 4485, 5979, 9965, 13455, 17937, 25909, 29895, 45839, 77727, 89685, 129545, 137517, 229195, 233181, 388635, 412551, 595907, 687585, 1165905, 1787721, 2062755, 2979535, 5363163, 8938605, 26815815]

約数ペア:

[(1, 26815815), (3, 8938605), (5, 5363163), (9, 2979535), (13, 2062755), (15, 1787721), (23, 1165905), (39, 687585), (45, 595907), (65, 412551), (69, 388635), (115, 233181), (117, 229195), (195, 137517), (207, 129545), (299, 89685), (345, 77727), (585, 45839), (897, 29895), (1035, 25909), (1495, 17937), (1993, 13455), (2691, 9965), (4485, 5979)]