221788000

素因数分解:

$2^5\times 5^3\times 7^1\times {\mathrm{89}}^2$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 629856864

約数和(自身を除く): 408068864

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, 125, 140, 160, 175, 178, 200, 224, 250, 280, 350, 356, 400, 445, 500, 560, 623, 700, 712, 800, 875, 890, 1000, 1120, 1246, 1400, 1424, 1750, 1780, 2000, 2225, 2492, 2800, 2848, 3115, 3500, 3560, 4000, 4450, 4984, 5600, 6230, 7000, 7120, 7921, 8900, 9968, 11125, 12460, 14000, 14240, 15575, 15842, 17800, 19936, 22250, 24920, 28000, 31150, 31684, 35600, 39605, 44500, 49840, 55447, 62300, 63368, 71200, 77875, 79210, 89000, 99680, 110894, 124600, 126736, 155750, 158420, 178000, 198025, 221788, 249200, 253472, 277235, 311500, 316840, 356000, 396050, 443576, 498400, 554470, 623000, 633680, 792100, 887152, 990125, 1108940, 1246000, 1267360, 1386175, 1584200, 1774304, 1980250, 2217880, 2492000, 2772350, 3168400, 3960500, 4435760, 5544700, 6336800, 6930875, 7921000, 8871520, 11089400, 13861750, 15842000, 22178800, 27723500, 31684000, 44357600, 55447000, 110894000, 221788000]

約数ペア:

[(1, 221788000), (2, 110894000), (4, 55447000), (5, 44357600), (7, 31684000), (8, 27723500), (10, 22178800), (14, 15842000), (16, 13861750), (20, 11089400), (25, 8871520), (28, 7921000), (32, 6930875), (35, 6336800), (40, 5544700), (50, 4435760), (56, 3960500), (70, 3168400), (80, 2772350), (89, 2492000), (100, 2217880), (112, 1980250), (125, 1774304), (140, 1584200), (160, 1386175), (175, 1267360), (178, 1246000), (200, 1108940), (224, 990125), (250, 887152), (280, 792100), (350, 633680), (356, 623000), (400, 554470), (445, 498400), (500, 443576), (560, 396050), (623, 356000), (700, 316840), (712, 311500), (800, 277235), (875, 253472), (890, 249200), (1000, 221788), (1120, 198025), (1246, 178000), (1400, 158420), (1424, 155750), (1750, 126736), (1780, 124600), (2000, 110894), (2225, 99680), (2492, 89000), (2800, 79210), (2848, 77875), (3115, 71200), (3500, 63368), (3560, 62300), (4000, 55447), (4450, 49840), (4984, 44500), (5600, 39605), (6230, 35600), (7000, 31684), (7120, 31150), (7921, 28000), (8900, 24920), (9968, 22250), (11125, 19936), (12460, 17800), (14000, 15842), (14240, 15575)]