20696000

素因数分解:

$2^6\times 5^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:239

約数の個数: 112

約数和(自身を含む): 55473600

約数和(自身を除く): 34777600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 130, 160, 199, 200, 208, 250, 260, 320, 325, 398, 400, 416, 500, 520, 650, 796, 800, 832, 995, 1000, 1040, 1300, 1592, 1600, 1625, 1990, 2000, 2080, 2587, 2600, 3184, 3250, 3980, 4000, 4160, 4975, 5174, 5200, 6368, 6500, 7960, 8000, 9950, 10348, 10400, 12736, 12935, 13000, 15920, 19900, 20696, 20800, 24875, 25870, 26000, 31840, 39800, 41392, 49750, 51740, 52000, 63680, 64675, 79600, 82784, 99500, 103480, 104000, 129350, 159200, 165568, 199000, 206960, 258700, 318400, 323375, 398000, 413920, 517400, 646750, 796000, 827840, 1034800, 1293500, 1592000, 2069600, 2587000, 4139200, 5174000, 10348000, 20696000]

約数ペア:

[(1, 20696000), (2, 10348000), (4, 5174000), (5, 4139200), (8, 2587000), (10, 2069600), (13, 1592000), (16, 1293500), (20, 1034800), (25, 827840), (26, 796000), (32, 646750), (40, 517400), (50, 413920), (52, 398000), (64, 323375), (65, 318400), (80, 258700), (100, 206960), (104, 199000), (125, 165568), (130, 159200), (160, 129350), (199, 104000), (200, 103480), (208, 99500), (250, 82784), (260, 79600), (320, 64675), (325, 63680), (398, 52000), (400, 51740), (416, 49750), (500, 41392), (520, 39800), (650, 31840), (796, 26000), (800, 25870), (832, 24875), (995, 20800), (1000, 20696), (1040, 19900), (1300, 15920), (1592, 13000), (1600, 12935), (1625, 12736), (1990, 10400), (2000, 10348), (2080, 9950), (2587, 8000), (2600, 7960), (3184, 6500), (3250, 6368), (3980, 5200), (4000, 5174), (4160, 4975)]