28578900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:494

約数の個数: 144

約数和(自身を含む): 97771520

約数和(自身を除く): 69192620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 31, 35, 42, 50, 60, 62, 70, 75, 84, 93, 100, 105, 124, 140, 150, 155, 175, 186, 210, 217, 300, 310, 350, 372, 420, 434, 439, 465, 525, 620, 651, 700, 775, 868, 878, 930, 1050, 1085, 1302, 1317, 1550, 1756, 1860, 2100, 2170, 2195, 2325, 2604, 2634, 3073, 3100, 3255, 4340, 4390, 4650, 5268, 5425, 6146, 6510, 6585, 8780, 9219, 9300, 10850, 10975, 12292, 13020, 13170, 13609, 15365, 16275, 18438, 21700, 21950, 26340, 27218, 30730, 32550, 32925, 36876, 40827, 43900, 46095, 54436, 61460, 65100, 65850, 68045, 76825, 81654, 92190, 95263, 131700, 136090, 153650, 163308, 184380, 190526, 204135, 230475, 272180, 285789, 307300, 340225, 381052, 408270, 460950, 476315, 571578, 680450, 816540, 921900, 952630, 1020675, 1143156, 1360900, 1428945, 1905260, 2041350, 2381575, 2857890, 4082700, 4763150, 5715780, 7144725, 9526300, 14289450, 28578900]

約数ペア:

[(1, 28578900), (2, 14289450), (3, 9526300), (4, 7144725), (5, 5715780), (6, 4763150), (7, 4082700), (10, 2857890), (12, 2381575), (14, 2041350), (15, 1905260), (20, 1428945), (21, 1360900), (25, 1143156), (28, 1020675), (30, 952630), (31, 921900), (35, 816540), (42, 680450), (50, 571578), (60, 476315), (62, 460950), (70, 408270), (75, 381052), (84, 340225), (93, 307300), (100, 285789), (105, 272180), (124, 230475), (140, 204135), (150, 190526), (155, 184380), (175, 163308), (186, 153650), (210, 136090), (217, 131700), (300, 95263), (310, 92190), (350, 81654), (372, 76825), (420, 68045), (434, 65850), (439, 65100), (465, 61460), (525, 54436), (620, 46095), (651, 43900), (700, 40827), (775, 36876), (868, 32925), (878, 32550), (930, 30730), (1050, 27218), (1085, 26340), (1302, 21950), (1317, 21700), (1550, 18438), (1756, 16275), (1860, 15365), (2100, 13609), (2170, 13170), (2195, 13020), (2325, 12292), (2604, 10975), (2634, 10850), (3073, 9300), (3100, 9219), (3255, 8780), (4340, 6585), (4390, 6510), (4650, 6146), (5268, 5425)]