28726600

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 82226880

約数和(自身を除く): 53500280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 71, 85, 100, 119, 136, 140, 142, 170, 175, 200, 238, 280, 284, 289, 340, 350, 355, 425, 476, 497, 568, 578, 595, 680, 700, 710, 850, 952, 994, 1156, 1190, 1207, 1400, 1420, 1445, 1700, 1775, 1988, 2023, 2312, 2380, 2414, 2485, 2840, 2890, 2975, 3400, 3550, 3976, 4046, 4760, 4828, 4970, 5780, 5950, 6035, 7100, 7225, 8092, 8449, 9656, 9940, 10115, 11560, 11900, 12070, 12425, 14200, 14450, 16184, 16898, 19880, 20230, 20519, 23800, 24140, 24850, 28900, 30175, 33796, 40460, 41038, 42245, 48280, 49700, 50575, 57800, 60350, 67592, 80920, 82076, 84490, 99400, 101150, 102595, 120700, 143633, 164152, 168980, 202300, 205190, 211225, 241400, 287266, 337960, 404600, 410380, 422450, 512975, 574532, 718165, 820760, 844900, 1025950, 1149064, 1436330, 1689800, 2051900, 2872660, 3590825, 4103800, 5745320, 7181650, 14363300, 28726600]

約数ペア:

[(1, 28726600), (2, 14363300), (4, 7181650), (5, 5745320), (7, 4103800), (8, 3590825), (10, 2872660), (14, 2051900), (17, 1689800), (20, 1436330), (25, 1149064), (28, 1025950), (34, 844900), (35, 820760), (40, 718165), (50, 574532), (56, 512975), (68, 422450), (70, 410380), (71, 404600), (85, 337960), (100, 287266), (119, 241400), (136, 211225), (140, 205190), (142, 202300), (170, 168980), (175, 164152), (200, 143633), (238, 120700), (280, 102595), (284, 101150), (289, 99400), (340, 84490), (350, 82076), (355, 80920), (425, 67592), (476, 60350), (497, 57800), (568, 50575), (578, 49700), (595, 48280), (680, 42245), (700, 41038), (710, 40460), (850, 33796), (952, 30175), (994, 28900), (1156, 24850), (1190, 24140), (1207, 23800), (1400, 20519), (1420, 20230), (1445, 19880), (1700, 16898), (1775, 16184), (1988, 14450), (2023, 14200), (2312, 12425), (2380, 12070), (2414, 11900), (2485, 11560), (2840, 10115), (2890, 9940), (2975, 9656), (3400, 8449), (3550, 8092), (3976, 7225), (4046, 7100), (4760, 6035), (4828, 5950), (4970, 5780)]