68280800

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 144

約数和(自身を含む): 194050080

約数和(自身を除く): 125769280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 89, 100, 112, 137, 140, 160, 175, 178, 200, 224, 274, 280, 350, 356, 400, 445, 548, 560, 623, 685, 700, 712, 800, 890, 959, 1096, 1120, 1246, 1370, 1400, 1424, 1780, 1918, 2192, 2225, 2492, 2740, 2800, 2848, 3115, 3425, 3560, 3836, 4384, 4450, 4795, 4984, 5480, 5600, 6230, 6850, 7120, 7672, 8900, 9590, 9968, 10960, 12193, 12460, 13700, 14240, 15344, 15575, 17800, 19180, 19936, 21920, 23975, 24386, 24920, 27400, 30688, 31150, 35600, 38360, 47950, 48772, 49840, 54800, 60965, 62300, 71200, 76720, 85351, 95900, 97544, 99680, 109600, 121930, 124600, 153440, 170702, 191800, 195088, 243860, 249200, 304825, 341404, 383600, 390176, 426755, 487720, 498400, 609650, 682808, 767200, 853510, 975440, 1219300, 1365616, 1707020, 1950880, 2133775, 2438600, 2731232, 3414040, 4267550, 4877200, 6828080, 8535100, 9754400, 13656160, 17070200, 34140400, 68280800]

約数ペア:

[(1, 68280800), (2, 34140400), (4, 17070200), (5, 13656160), (7, 9754400), (8, 8535100), (10, 6828080), (14, 4877200), (16, 4267550), (20, 3414040), (25, 2731232), (28, 2438600), (32, 2133775), (35, 1950880), (40, 1707020), (50, 1365616), (56, 1219300), (70, 975440), (80, 853510), (89, 767200), (100, 682808), (112, 609650), (137, 498400), (140, 487720), (160, 426755), (175, 390176), (178, 383600), (200, 341404), (224, 304825), (274, 249200), (280, 243860), (350, 195088), (356, 191800), (400, 170702), (445, 153440), (548, 124600), (560, 121930), (623, 109600), (685, 99680), (700, 97544), (712, 95900), (800, 85351), (890, 76720), (959, 71200), (1096, 62300), (1120, 60965), (1246, 54800), (1370, 49840), (1400, 48772), (1424, 47950), (1780, 38360), (1918, 35600), (2192, 31150), (2225, 30688), (2492, 27400), (2740, 24920), (2800, 24386), (2848, 23975), (3115, 21920), (3425, 19936), (3560, 19180), (3836, 17800), (4384, 15575), (4450, 15344), (4795, 14240), (4984, 13700), (5480, 12460), (5600, 12193), (6230, 10960), (6850, 9968), (7120, 9590), (7672, 8900)]