21005600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1$

素因数の和:80

約数の個数: 216

約数和(自身を含む): 66495744

約数和(自身を除く): 45490144

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 31, 32, 35, 40, 44, 50, 55, 56, 62, 70, 77, 80, 88, 100, 110, 112, 121, 124, 140, 154, 155, 160, 175, 176, 200, 217, 220, 224, 242, 248, 275, 280, 308, 310, 341, 350, 352, 385, 400, 434, 440, 484, 496, 550, 560, 605, 616, 620, 682, 700, 770, 775, 800, 847, 868, 880, 968, 992, 1085, 1100, 1120, 1210, 1232, 1240, 1364, 1400, 1540, 1550, 1694, 1705, 1736, 1760, 1925, 1936, 2170, 2200, 2387, 2420, 2464, 2480, 2728, 2800, 3025, 3080, 3100, 3388, 3410, 3472, 3751, 3850, 3872, 4235, 4340, 4400, 4774, 4840, 4960, 5425, 5456, 5600, 6050, 6160, 6200, 6776, 6820, 6944, 7502, 7700, 8470, 8525, 8680, 8800, 9548, 9680, 10850, 10912, 11935, 12100, 12320, 12400, 13552, 13640, 15004, 15400, 16940, 17050, 17360, 18755, 19096, 19360, 21175, 21700, 23870, 24200, 24800, 26257, 27104, 27280, 30008, 30800, 33880, 34100, 34720, 37510, 38192, 42350, 43400, 47740, 48400, 52514, 54560, 59675, 60016, 61600, 67760, 68200, 75020, 76384, 84700, 86800, 93775, 95480, 96800, 105028, 119350, 120032, 131285, 135520, 136400, 150040, 169400, 173600, 187550, 190960, 210056, 238700, 262570, 272800, 300080, 338800, 375100, 381920, 420112, 477400, 525140, 600160, 656425, 677600, 750200, 840224, 954800, 1050280, 1312850, 1500400, 1909600, 2100560, 2625700, 3000800, 4201120, 5251400, 10502800, 21005600]

約数ペア:

[(1, 21005600), (2, 10502800), (4, 5251400), (5, 4201120), (7, 3000800), (8, 2625700), (10, 2100560), (11, 1909600), (14, 1500400), (16, 1312850), (20, 1050280), (22, 954800), (25, 840224), (28, 750200), (31, 677600), (32, 656425), (35, 600160), (40, 525140), (44, 477400), (50, 420112), (55, 381920), (56, 375100), (62, 338800), (70, 300080), (77, 272800), (80, 262570), (88, 238700), (100, 210056), (110, 190960), (112, 187550), (121, 173600), (124, 169400), (140, 150040), (154, 136400), (155, 135520), (160, 131285), (175, 120032), (176, 119350), (200, 105028), (217, 96800), (220, 95480), (224, 93775), (242, 86800), (248, 84700), (275, 76384), (280, 75020), (308, 68200), (310, 67760), (341, 61600), (350, 60016), (352, 59675), (385, 54560), (400, 52514), (434, 48400), (440, 47740), (484, 43400), (496, 42350), (550, 38192), (560, 37510), (605, 34720), (616, 34100), (620, 33880), (682, 30800), (700, 30008), (770, 27280), (775, 27104), (800, 26257), (847, 24800), (868, 24200), (880, 23870), (968, 21700), (992, 21175), (1085, 19360), (1100, 19096), (1120, 18755), (1210, 17360), (1232, 17050), (1240, 16940), (1364, 15400), (1400, 15004), (1540, 13640), (1550, 13552), (1694, 12400), (1705, 12320), (1736, 12100), (1760, 11935), (1925, 10912), (1936, 10850), (2170, 9680), (2200, 9548), (2387, 8800), (2420, 8680), (2464, 8525), (2480, 8470), (2728, 7700), (2800, 7502), (3025, 6944), (3080, 6820), (3100, 6776), (3388, 6200), (3410, 6160), (3472, 6050), (3751, 5600), (3850, 5456), (3872, 5425), (4235, 4960), (4340, 4840), (4400, 4774)]