18909800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1039}}^1$

素因数の和:1075

約数の個数: 96

約数和(自身を含む): 54163200

約数和(自身を除く): 35253400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 91, 100, 104, 130, 140, 175, 182, 200, 260, 280, 325, 350, 364, 455, 520, 650, 700, 728, 910, 1039, 1300, 1400, 1820, 2078, 2275, 2600, 3640, 4156, 4550, 5195, 7273, 8312, 9100, 10390, 13507, 14546, 18200, 20780, 25975, 27014, 29092, 36365, 41560, 51950, 54028, 58184, 67535, 72730, 94549, 103900, 108056, 135070, 145460, 181825, 189098, 207800, 270140, 290920, 337675, 363650, 378196, 472745, 540280, 675350, 727300, 756392, 945490, 1350700, 1454600, 1890980, 2363725, 2701400, 3781960, 4727450, 9454900, 18909800]

約数ペア:

[(1, 18909800), (2, 9454900), (4, 4727450), (5, 3781960), (7, 2701400), (8, 2363725), (10, 1890980), (13, 1454600), (14, 1350700), (20, 945490), (25, 756392), (26, 727300), (28, 675350), (35, 540280), (40, 472745), (50, 378196), (52, 363650), (56, 337675), (65, 290920), (70, 270140), (91, 207800), (100, 189098), (104, 181825), (130, 145460), (140, 135070), (175, 108056), (182, 103900), (200, 94549), (260, 72730), (280, 67535), (325, 58184), (350, 54028), (364, 51950), (455, 41560), (520, 36365), (650, 29092), (700, 27014), (728, 25975), (910, 20780), (1039, 18200), (1300, 14546), (1400, 13507), (1820, 10390), (2078, 9100), (2275, 8312), (2600, 7273), (3640, 5195), (4156, 4550)]