78996400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:431

約数の個数: 120

約数和(自身を含む): 220030560

約数和(自身を除く): 141034160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 89, 100, 112, 140, 175, 178, 200, 280, 317, 350, 356, 400, 445, 560, 623, 634, 700, 712, 890, 1246, 1268, 1400, 1424, 1585, 1780, 2219, 2225, 2492, 2536, 2800, 3115, 3170, 3560, 4438, 4450, 4984, 5072, 6230, 6340, 7120, 7925, 8876, 8900, 9968, 11095, 12460, 12680, 15575, 15850, 17752, 17800, 22190, 24920, 25360, 28213, 31150, 31700, 35504, 35600, 44380, 49840, 55475, 56426, 62300, 63400, 88760, 110950, 112852, 124600, 126800, 141065, 177520, 197491, 221900, 225704, 249200, 282130, 394982, 443800, 451408, 564260, 705325, 789964, 887600, 987455, 1128520, 1410650, 1579928, 1974910, 2257040, 2821300, 3159856, 3949820, 4937275, 5642600, 7899640, 9874550, 11285200, 15799280, 19749100, 39498200, 78996400]

約数ペア:

[(1, 78996400), (2, 39498200), (4, 19749100), (5, 15799280), (7, 11285200), (8, 9874550), (10, 7899640), (14, 5642600), (16, 4937275), (20, 3949820), (25, 3159856), (28, 2821300), (35, 2257040), (40, 1974910), (50, 1579928), (56, 1410650), (70, 1128520), (80, 987455), (89, 887600), (100, 789964), (112, 705325), (140, 564260), (175, 451408), (178, 443800), (200, 394982), (280, 282130), (317, 249200), (350, 225704), (356, 221900), (400, 197491), (445, 177520), (560, 141065), (623, 126800), (634, 124600), (700, 112852), (712, 110950), (890, 88760), (1246, 63400), (1268, 62300), (1400, 56426), (1424, 55475), (1585, 49840), (1780, 44380), (2219, 35600), (2225, 35504), (2492, 31700), (2536, 31150), (2800, 28213), (3115, 25360), (3170, 24920), (3560, 22190), (4438, 17800), (4450, 17752), (4984, 15850), (5072, 15575), (6230, 12680), (6340, 12460), (7120, 11095), (7925, 9968), (8876, 8900)]