19902000

素因数分解:

$2^4\times 3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:164

約数の個数: 160

約数和(自身を含む): 66852864

約数和(自身を除く): 46950864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 31, 40, 48, 50, 60, 62, 75, 80, 93, 100, 107, 120, 124, 125, 150, 155, 186, 200, 214, 240, 248, 250, 300, 310, 321, 372, 375, 400, 428, 465, 496, 500, 535, 600, 620, 642, 744, 750, 775, 856, 930, 1000, 1070, 1200, 1240, 1284, 1488, 1500, 1550, 1605, 1712, 1860, 2000, 2140, 2325, 2480, 2568, 2675, 3000, 3100, 3210, 3317, 3720, 3875, 4280, 4650, 5136, 5350, 6000, 6200, 6420, 6634, 7440, 7750, 8025, 8560, 9300, 9951, 10700, 11625, 12400, 12840, 13268, 13375, 15500, 16050, 16585, 18600, 19902, 21400, 23250, 25680, 26536, 26750, 31000, 32100, 33170, 37200, 39804, 40125, 42800, 46500, 49755, 53072, 53500, 62000, 64200, 66340, 79608, 80250, 82925, 93000, 99510, 107000, 128400, 132680, 159216, 160500, 165850, 186000, 199020, 214000, 248775, 265360, 321000, 331700, 398040, 414625, 497550, 642000, 663400, 796080, 829250, 995100, 1243875, 1326800, 1658500, 1990200, 2487750, 3317000, 3980400, 4975500, 6634000, 9951000, 19902000]

約数ペア:

[(1, 19902000), (2, 9951000), (3, 6634000), (4, 4975500), (5, 3980400), (6, 3317000), (8, 2487750), (10, 1990200), (12, 1658500), (15, 1326800), (16, 1243875), (20, 995100), (24, 829250), (25, 796080), (30, 663400), (31, 642000), (40, 497550), (48, 414625), (50, 398040), (60, 331700), (62, 321000), (75, 265360), (80, 248775), (93, 214000), (100, 199020), (107, 186000), (120, 165850), (124, 160500), (125, 159216), (150, 132680), (155, 128400), (186, 107000), (200, 99510), (214, 93000), (240, 82925), (248, 80250), (250, 79608), (300, 66340), (310, 64200), (321, 62000), (372, 53500), (375, 53072), (400, 49755), (428, 46500), (465, 42800), (496, 40125), (500, 39804), (535, 37200), (600, 33170), (620, 32100), (642, 31000), (744, 26750), (750, 26536), (775, 25680), (856, 23250), (930, 21400), (1000, 19902), (1070, 18600), (1200, 16585), (1240, 16050), (1284, 15500), (1488, 13375), (1500, 13268), (1550, 12840), (1605, 12400), (1712, 11625), (1860, 10700), (2000, 9951), (2140, 9300), (2325, 8560), (2480, 8025), (2568, 7750), (2675, 7440), (3000, 6634), (3100, 6420), (3210, 6200), (3317, 6000), (3720, 5350), (3875, 5136), (4280, 4650)]