257348000

素因数分解:

$2^5\times 5^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:153

約数の個数: 288

約数和(自身を含む): 799959888

約数和(自身を除く): 542611888

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, 101, 104, 112, 125, 130, 140, 160, 175, 182, 196, 200, 202, 208, 224, 245, 250, 260, 280, 325, 350, 364, 392, 400, 404, 416, 455, 490, 500, 505, 520, 560, 637, 650, 700, 707, 728, 784, 800, 808, 875, 910, 980, 1000, 1010, 1040, 1120, 1225, 1274, 1300, 1313, 1400, 1414, 1456, 1568, 1616, 1625, 1750, 1820, 1960, 2000, 2020, 2080, 2275, 2450, 2525, 2548, 2600, 2626, 2800, 2828, 2912, 3185, 3232, 3250, 3500, 3535, 3640, 3920, 4000, 4040, 4550, 4900, 4949, 5050, 5096, 5200, 5252, 5600, 5656, 6125, 6370, 6500, 6565, 7000, 7070, 7280, 7840, 8080, 9100, 9191, 9800, 9898, 10100, 10192, 10400, 10504, 11312, 11375, 12250, 12625, 12740, 13000, 13130, 14000, 14140, 14560, 15925, 16160, 17675, 18200, 18382, 19600, 19796, 20200, 20384, 21008, 22624, 22750, 24500, 24745, 25250, 25480, 26000, 26260, 28000, 28280, 31850, 32825, 35350, 36400, 36764, 39200, 39592, 40400, 42016, 45500, 45955, 49000, 49490, 50500, 50960, 52000, 52520, 56560, 63700, 64337, 65650, 70700, 72800, 73528, 79184, 79625, 80800, 88375, 91000, 91910, 98000, 98980, 101000, 101920, 105040, 113120, 123725, 127400, 128674, 131300, 141400, 147056, 158368, 159250, 164125, 176750, 182000, 183820, 196000, 197960, 202000, 210080, 229775, 247450, 254800, 257348, 262600, 282800, 294112, 318500, 321685, 328250, 353500, 364000, 367640, 395920, 404000, 459550, 494900, 509600, 514696, 525200, 565600, 618625, 637000, 643370, 656500, 707000, 735280, 791840, 919100, 989800, 1029392, 1050400, 1148875, 1237250, 1274000, 1286740, 1313000, 1414000, 1470560, 1608425, 1838200, 1979600, 2058784, 2297750, 2474500, 2548000, 2573480, 2626000, 2828000, 3216850, 3676400, 3959200, 4595500, 4949000, 5146960, 5252000, 6433700, 7352800, 8042125, 9191000, 9898000, 10293920, 12867400, 16084250, 18382000, 19796000, 25734800, 32168500, 36764000, 51469600, 64337000, 128674000, 257348000]

約数ペア:

[(1, 257348000), (2, 128674000), (4, 64337000), (5, 51469600), (7, 36764000), (8, 32168500), (10, 25734800), (13, 19796000), (14, 18382000), (16, 16084250), (20, 12867400), (25, 10293920), (26, 9898000), (28, 9191000), (32, 8042125), (35, 7352800), (40, 6433700), (49, 5252000), (50, 5146960), (52, 4949000), (56, 4595500), (65, 3959200), (70, 3676400), (80, 3216850), (91, 2828000), (98, 2626000), (100, 2573480), (101, 2548000), (104, 2474500), (112, 2297750), (125, 2058784), (130, 1979600), (140, 1838200), (160, 1608425), (175, 1470560), (182, 1414000), (196, 1313000), (200, 1286740), (202, 1274000), (208, 1237250), (224, 1148875), (245, 1050400), (250, 1029392), (260, 989800), (280, 919100), (325, 791840), (350, 735280), (364, 707000), (392, 656500), (400, 643370), (404, 637000), (416, 618625), (455, 565600), (490, 525200), (500, 514696), (505, 509600), (520, 494900), (560, 459550), (637, 404000), (650, 395920), (700, 367640), (707, 364000), (728, 353500), (784, 328250), (800, 321685), (808, 318500), (875, 294112), (910, 282800), (980, 262600), (1000, 257348), (1010, 254800), (1040, 247450), (1120, 229775), (1225, 210080), (1274, 202000), (1300, 197960), (1313, 196000), (1400, 183820), (1414, 182000), (1456, 176750), (1568, 164125), (1616, 159250), (1625, 158368), (1750, 147056), (1820, 141400), (1960, 131300), (2000, 128674), (2020, 127400), (2080, 123725), (2275, 113120), (2450, 105040), (2525, 101920), (2548, 101000), (2600, 98980), (2626, 98000), (2800, 91910), (2828, 91000), (2912, 88375), (3185, 80800), (3232, 79625), (3250, 79184), (3500, 73528), (3535, 72800), (3640, 70700), (3920, 65650), (4000, 64337), (4040, 63700), (4550, 56560), (4900, 52520), (4949, 52000), (5050, 50960), (5096, 50500), (5200, 49490), (5252, 49000), (5600, 45955), (5656, 45500), (6125, 42016), (6370, 40400), (6500, 39592), (6565, 39200), (7000, 36764), (7070, 36400), (7280, 35350), (7840, 32825), (8080, 31850), (9100, 28280), (9191, 28000), (9800, 26260), (9898, 26000), (10100, 25480), (10192, 25250), (10400, 24745), (10504, 24500), (11312, 22750), (11375, 22624), (12250, 21008), (12625, 20384), (12740, 20200), (13000, 19796), (13130, 19600), (14000, 18382), (14140, 18200), (14560, 17675), (15925, 16160)]