51740000

素因数分解:

$2^5\times 5^4\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:242

約数の個数: 120

約数和(自身を含む): 137768400

約数和(自身を除く): 86028400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 125, 130, 160, 199, 200, 208, 250, 260, 325, 398, 400, 416, 500, 520, 625, 650, 796, 800, 995, 1000, 1040, 1250, 1300, 1592, 1625, 1990, 2000, 2080, 2500, 2587, 2600, 3184, 3250, 3980, 4000, 4975, 5000, 5174, 5200, 6368, 6500, 7960, 8125, 9950, 10000, 10348, 10400, 12935, 13000, 15920, 16250, 19900, 20000, 20696, 24875, 25870, 26000, 31840, 32500, 39800, 41392, 49750, 51740, 52000, 64675, 65000, 79600, 82784, 99500, 103480, 124375, 129350, 130000, 159200, 199000, 206960, 248750, 258700, 260000, 323375, 398000, 413920, 497500, 517400, 646750, 796000, 995000, 1034800, 1293500, 1616875, 1990000, 2069600, 2587000, 3233750, 3980000, 5174000, 6467500, 10348000, 12935000, 25870000, 51740000]

約数ペア:

[(1, 51740000), (2, 25870000), (4, 12935000), (5, 10348000), (8, 6467500), (10, 5174000), (13, 3980000), (16, 3233750), (20, 2587000), (25, 2069600), (26, 1990000), (32, 1616875), (40, 1293500), (50, 1034800), (52, 995000), (65, 796000), (80, 646750), (100, 517400), (104, 497500), (125, 413920), (130, 398000), (160, 323375), (199, 260000), (200, 258700), (208, 248750), (250, 206960), (260, 199000), (325, 159200), (398, 130000), (400, 129350), (416, 124375), (500, 103480), (520, 99500), (625, 82784), (650, 79600), (796, 65000), (800, 64675), (995, 52000), (1000, 51740), (1040, 49750), (1250, 41392), (1300, 39800), (1592, 32500), (1625, 31840), (1990, 26000), (2000, 25870), (2080, 24875), (2500, 20696), (2587, 20000), (2600, 19900), (3184, 16250), (3250, 15920), (3980, 13000), (4000, 12935), (4975, 10400), (5000, 10348), (5174, 10000), (5200, 9950), (6368, 8125), (6500, 7960)]