19947200

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:179

約数の個数: 168

約数和(自身を含む): 60850272

約数和(自身を除く): 40903072

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 64, 65, 70, 80, 91, 100, 104, 112, 130, 137, 140, 160, 175, 182, 200, 208, 224, 260, 274, 280, 320, 325, 350, 364, 400, 416, 448, 455, 520, 548, 560, 650, 685, 700, 728, 800, 832, 910, 959, 1040, 1096, 1120, 1300, 1370, 1400, 1456, 1600, 1781, 1820, 1918, 2080, 2192, 2240, 2275, 2600, 2740, 2800, 2912, 3425, 3562, 3640, 3836, 4160, 4384, 4550, 4795, 5200, 5480, 5600, 5824, 6850, 7124, 7280, 7672, 8768, 8905, 9100, 9590, 10400, 10960, 11200, 12467, 13700, 14248, 14560, 15344, 17810, 18200, 19180, 20800, 21920, 23975, 24934, 27400, 28496, 29120, 30688, 35620, 36400, 38360, 43840, 44525, 47950, 49868, 54800, 56992, 61376, 62335, 71240, 72800, 76720, 89050, 95900, 99736, 109600, 113984, 124670, 142480, 145600, 153440, 178100, 191800, 199472, 219200, 249340, 284960, 306880, 311675, 356200, 383600, 398944, 498680, 569920, 623350, 712400, 767200, 797888, 997360, 1246700, 1424800, 1534400, 1994720, 2493400, 2849600, 3989440, 4986800, 9973600, 19947200]

約数ペア:

[(1, 19947200), (2, 9973600), (4, 4986800), (5, 3989440), (7, 2849600), (8, 2493400), (10, 1994720), (13, 1534400), (14, 1424800), (16, 1246700), (20, 997360), (25, 797888), (26, 767200), (28, 712400), (32, 623350), (35, 569920), (40, 498680), (50, 398944), (52, 383600), (56, 356200), (64, 311675), (65, 306880), (70, 284960), (80, 249340), (91, 219200), (100, 199472), (104, 191800), (112, 178100), (130, 153440), (137, 145600), (140, 142480), (160, 124670), (175, 113984), (182, 109600), (200, 99736), (208, 95900), (224, 89050), (260, 76720), (274, 72800), (280, 71240), (320, 62335), (325, 61376), (350, 56992), (364, 54800), (400, 49868), (416, 47950), (448, 44525), (455, 43840), (520, 38360), (548, 36400), (560, 35620), (650, 30688), (685, 29120), (700, 28496), (728, 27400), (800, 24934), (832, 23975), (910, 21920), (959, 20800), (1040, 19180), (1096, 18200), (1120, 17810), (1300, 15344), (1370, 14560), (1400, 14248), (1456, 13700), (1600, 12467), (1781, 11200), (1820, 10960), (1918, 10400), (2080, 9590), (2192, 9100), (2240, 8905), (2275, 8768), (2600, 7672), (2740, 7280), (2800, 7124), (2912, 6850), (3425, 5824), (3562, 5600), (3640, 5480), (3836, 5200), (4160, 4795), (4384, 4550)]