28399995

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1129}}^1$

素因数の和:1196

約数の個数: 48

約数和(自身を含む): 54294240

約数和(自身を除く): 25894245

約数列:

[1, 3, 5, 9, 13, 15, 39, 43, 45, 65, 117, 129, 195, 215, 387, 559, 585, 645, 1129, 1677, 1935, 2795, 3387, 5031, 5645, 8385, 10161, 14677, 16935, 25155, 44031, 48547, 50805, 73385, 132093, 145641, 220155, 242735, 436923, 631111, 660465, 728205, 1893333, 2184615, 3155555, 5679999, 9466665, 28399995]

約数ペア:

[(1, 28399995), (3, 9466665), (5, 5679999), (9, 3155555), (13, 2184615), (15, 1893333), (39, 728205), (43, 660465), (45, 631111), (65, 436923), (117, 242735), (129, 220155), (195, 145641), (215, 132093), (387, 73385), (559, 50805), (585, 48547), (645, 44031), (1129, 25155), (1677, 16935), (1935, 14677), (2795, 10161), (3387, 8385), (5031, 5645)]