20905500

素因数分解:

$2^2\times 3^1\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1$

素因数の和:221

約数の個数: 192

約数和(自身を含む): 76317696

約数和(自身を除く): 55412196

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 25, 28, 30, 33, 35, 42, 44, 50, 55, 60, 66, 70, 75, 77, 84, 100, 105, 110, 125, 132, 140, 150, 154, 165, 175, 181, 210, 220, 231, 250, 275, 300, 308, 330, 350, 362, 375, 385, 420, 462, 500, 525, 543, 550, 660, 700, 724, 750, 770, 825, 875, 905, 924, 1050, 1086, 1100, 1155, 1267, 1375, 1500, 1540, 1650, 1750, 1810, 1925, 1991, 2100, 2172, 2310, 2534, 2625, 2715, 2750, 3300, 3500, 3620, 3801, 3850, 3982, 4125, 4525, 4620, 5068, 5250, 5430, 5500, 5775, 5973, 6335, 7602, 7700, 7964, 8250, 9050, 9625, 9955, 10500, 10860, 11550, 11946, 12670, 13575, 13937, 15204, 16500, 18100, 19005, 19250, 19910, 22625, 23100, 23892, 25340, 27150, 27874, 28875, 29865, 31675, 38010, 38500, 39820, 41811, 45250, 49775, 54300, 55748, 57750, 59730, 63350, 67875, 69685, 76020, 83622, 90500, 95025, 99550, 115500, 119460, 126700, 135750, 139370, 149325, 158375, 167244, 190050, 199100, 209055, 248875, 271500, 278740, 298650, 316750, 348425, 380100, 418110, 475125, 497750, 597300, 633500, 696850, 746625, 836220, 950250, 995500, 1045275, 1393700, 1493250, 1742125, 1900500, 2090550, 2986500, 3484250, 4181100, 5226375, 6968500, 10452750, 20905500]

約数ペア:

[(1, 20905500), (2, 10452750), (3, 6968500), (4, 5226375), (5, 4181100), (6, 3484250), (7, 2986500), (10, 2090550), (11, 1900500), (12, 1742125), (14, 1493250), (15, 1393700), (20, 1045275), (21, 995500), (22, 950250), (25, 836220), (28, 746625), (30, 696850), (33, 633500), (35, 597300), (42, 497750), (44, 475125), (50, 418110), (55, 380100), (60, 348425), (66, 316750), (70, 298650), (75, 278740), (77, 271500), (84, 248875), (100, 209055), (105, 199100), (110, 190050), (125, 167244), (132, 158375), (140, 149325), (150, 139370), (154, 135750), (165, 126700), (175, 119460), (181, 115500), (210, 99550), (220, 95025), (231, 90500), (250, 83622), (275, 76020), (300, 69685), (308, 67875), (330, 63350), (350, 59730), (362, 57750), (375, 55748), (385, 54300), (420, 49775), (462, 45250), (500, 41811), (525, 39820), (543, 38500), (550, 38010), (660, 31675), (700, 29865), (724, 28875), (750, 27874), (770, 27150), (825, 25340), (875, 23892), (905, 23100), (924, 22625), (1050, 19910), (1086, 19250), (1100, 19005), (1155, 18100), (1267, 16500), (1375, 15204), (1500, 13937), (1540, 13575), (1650, 12670), (1750, 11946), (1810, 11550), (1925, 10860), (1991, 10500), (2100, 9955), (2172, 9625), (2310, 9050), (2534, 8250), (2625, 7964), (2715, 7700), (2750, 7602), (3300, 6335), (3500, 5973), (3620, 5775), (3801, 5500), (3850, 5430), (3982, 5250), (4125, 5068), (4525, 4620)]