28447575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 51246720

約数和(自身を除く): 22799145

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 163, 179, 195, 325, 489, 537, 815, 895, 975, 2119, 2327, 2445, 2685, 4075, 4475, 6357, 6981, 10595, 11635, 12225, 13425, 29177, 31785, 34905, 52975, 58175, 87531, 145885, 158925, 174525, 379301, 437655, 729425, 1137903, 1896505, 2188275, 5689515, 9482525, 28447575]

約数ペア:

[(1, 28447575), (3, 9482525), (5, 5689515), (13, 2188275), (15, 1896505), (25, 1137903), (39, 729425), (65, 437655), (75, 379301), (163, 174525), (179, 158925), (195, 145885), (325, 87531), (489, 58175), (537, 52975), (815, 34905), (895, 31785), (975, 29177), (2119, 13425), (2327, 12225), (2445, 11635), (2685, 10595), (4075, 6981), (4475, 6357)]