12740000

素因数分解:

$2^5\times 5^4\times 7^2\times {\mathrm{13}}^1$

素因数の和:57

約数の個数: 180

約数和(自身を含む): 39263994

約数和(自身を除く): 26523994

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 49, 50, 52, 56, 65, 70, 80, 91, 98, 100, 104, 112, 125, 130, 140, 160, 175, 182, 196, 200, 208, 224, 245, 250, 260, 280, 325, 350, 364, 392, 400, 416, 455, 490, 500, 520, 560, 625, 637, 650, 700, 728, 784, 800, 875, 910, 980, 1000, 1040, 1120, 1225, 1250, 1274, 1300, 1400, 1456, 1568, 1625, 1750, 1820, 1960, 2000, 2080, 2275, 2450, 2500, 2548, 2600, 2800, 2912, 3185, 3250, 3500, 3640, 3920, 4000, 4375, 4550, 4900, 5000, 5096, 5200, 5600, 6125, 6370, 6500, 7000, 7280, 7840, 8125, 8750, 9100, 9800, 10000, 10192, 10400, 11375, 12250, 12740, 13000, 14000, 14560, 15925, 16250, 17500, 18200, 19600, 20000, 20384, 22750, 24500, 25480, 26000, 28000, 30625, 31850, 32500, 35000, 36400, 39200, 45500, 49000, 50960, 52000, 56875, 61250, 63700, 65000, 70000, 72800, 79625, 91000, 98000, 101920, 113750, 122500, 127400, 130000, 140000, 159250, 182000, 196000, 227500, 245000, 254800, 260000, 318500, 364000, 398125, 455000, 490000, 509600, 637000, 796250, 910000, 980000, 1274000, 1592500, 1820000, 2548000, 3185000, 6370000, 12740000]

約数ペア:

[(1, 12740000), (2, 6370000), (4, 3185000), (5, 2548000), (7, 1820000), (8, 1592500), (10, 1274000), (13, 980000), (14, 910000), (16, 796250), (20, 637000), (25, 509600), (26, 490000), (28, 455000), (32, 398125), (35, 364000), (40, 318500), (49, 260000), (50, 254800), (52, 245000), (56, 227500), (65, 196000), (70, 182000), (80, 159250), (91, 140000), (98, 130000), (100, 127400), (104, 122500), (112, 113750), (125, 101920), (130, 98000), (140, 91000), (160, 79625), (175, 72800), (182, 70000), (196, 65000), (200, 63700), (208, 61250), (224, 56875), (245, 52000), (250, 50960), (260, 49000), (280, 45500), (325, 39200), (350, 36400), (364, 35000), (392, 32500), (400, 31850), (416, 30625), (455, 28000), (490, 26000), (500, 25480), (520, 24500), (560, 22750), (625, 20384), (637, 20000), (650, 19600), (700, 18200), (728, 17500), (784, 16250), (800, 15925), (875, 14560), (910, 14000), (980, 13000), (1000, 12740), (1040, 12250), (1120, 11375), (1225, 10400), (1250, 10192), (1274, 10000), (1300, 9800), (1400, 9100), (1456, 8750), (1568, 8125), (1625, 7840), (1750, 7280), (1820, 7000), (1960, 6500), (2000, 6370), (2080, 6125), (2275, 5600), (2450, 5200), (2500, 5096), (2548, 5000), (2600, 4900), (2800, 4550), (2912, 4375), (3185, 4000), (3250, 3920), (3500, 3640)]