20357400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:194

約数の個数: 192

約数和(自身を含む): 74638080

約数和(自身を除く): 54280680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 37, 40, 42, 50, 56, 60, 70, 74, 75, 84, 100, 105, 111, 120, 131, 140, 148, 150, 168, 175, 185, 200, 210, 222, 259, 262, 280, 296, 300, 350, 370, 393, 420, 444, 518, 524, 525, 555, 600, 655, 700, 740, 777, 786, 840, 888, 917, 925, 1036, 1048, 1050, 1110, 1295, 1310, 1400, 1480, 1554, 1572, 1834, 1850, 1965, 2072, 2100, 2220, 2590, 2620, 2751, 2775, 3108, 3144, 3275, 3668, 3700, 3885, 3930, 4200, 4440, 4585, 4847, 5180, 5240, 5502, 5550, 6216, 6475, 6550, 7336, 7400, 7770, 7860, 9170, 9694, 9825, 10360, 11004, 11100, 12950, 13100, 13755, 14541, 15540, 15720, 18340, 19388, 19425, 19650, 22008, 22200, 22925, 24235, 25900, 26200, 27510, 29082, 31080, 33929, 36680, 38776, 38850, 39300, 45850, 48470, 51800, 55020, 58164, 67858, 68775, 72705, 77700, 78600, 91700, 96940, 101787, 110040, 116328, 121175, 135716, 137550, 145410, 155400, 169645, 183400, 193880, 203574, 242350, 271432, 275100, 290820, 339290, 363525, 407148, 484700, 508935, 550200, 581640, 678580, 727050, 814296, 848225, 969400, 1017870, 1357160, 1454100, 1696450, 2035740, 2544675, 2908200, 3392900, 4071480, 5089350, 6785800, 10178700, 20357400]

約数ペア:

[(1, 20357400), (2, 10178700), (3, 6785800), (4, 5089350), (5, 4071480), (6, 3392900), (7, 2908200), (8, 2544675), (10, 2035740), (12, 1696450), (14, 1454100), (15, 1357160), (20, 1017870), (21, 969400), (24, 848225), (25, 814296), (28, 727050), (30, 678580), (35, 581640), (37, 550200), (40, 508935), (42, 484700), (50, 407148), (56, 363525), (60, 339290), (70, 290820), (74, 275100), (75, 271432), (84, 242350), (100, 203574), (105, 193880), (111, 183400), (120, 169645), (131, 155400), (140, 145410), (148, 137550), (150, 135716), (168, 121175), (175, 116328), (185, 110040), (200, 101787), (210, 96940), (222, 91700), (259, 78600), (262, 77700), (280, 72705), (296, 68775), (300, 67858), (350, 58164), (370, 55020), (393, 51800), (420, 48470), (444, 45850), (518, 39300), (524, 38850), (525, 38776), (555, 36680), (600, 33929), (655, 31080), (700, 29082), (740, 27510), (777, 26200), (786, 25900), (840, 24235), (888, 22925), (917, 22200), (925, 22008), (1036, 19650), (1048, 19425), (1050, 19388), (1110, 18340), (1295, 15720), (1310, 15540), (1400, 14541), (1480, 13755), (1554, 13100), (1572, 12950), (1834, 11100), (1850, 11004), (1965, 10360), (2072, 9825), (2100, 9694), (2220, 9170), (2590, 7860), (2620, 7770), (2751, 7400), (2775, 7336), (3108, 6550), (3144, 6475), (3275, 6216), (3668, 5550), (3700, 5502), (3885, 5240), (3930, 5180), (4200, 4847), (4440, 4585)]