279968000

素因数分解:

$2^8\times 5^3\times {\mathrm{13}}^1\times {\mathrm{673}}^1$

素因数の和:717

約数の個数: 144

約数和(自身を含む): 752200176

約数和(自身を除く): 472232176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 128, 130, 160, 200, 208, 250, 256, 260, 320, 325, 400, 416, 500, 520, 640, 650, 673, 800, 832, 1000, 1040, 1280, 1300, 1346, 1600, 1625, 1664, 2000, 2080, 2600, 2692, 3200, 3250, 3328, 3365, 4000, 4160, 5200, 5384, 6400, 6500, 6730, 8000, 8320, 8749, 10400, 10768, 13000, 13460, 16000, 16640, 16825, 17498, 20800, 21536, 26000, 26920, 32000, 33650, 34996, 41600, 43072, 43745, 52000, 53840, 67300, 69992, 83200, 84125, 86144, 87490, 104000, 107680, 134600, 139984, 168250, 172288, 174980, 208000, 215360, 218725, 269200, 279968, 336500, 349960, 416000, 430720, 437450, 538400, 559936, 673000, 699920, 861440, 874900, 1076800, 1093625, 1119872, 1346000, 1399840, 1749800, 2153600, 2187250, 2239744, 2692000, 2799680, 3499600, 4307200, 4374500, 5384000, 5599360, 6999200, 8749000, 10768000, 11198720, 13998400, 17498000, 21536000, 27996800, 34996000, 55993600, 69992000, 139984000, 279968000]

約数ペア:

[(1, 279968000), (2, 139984000), (4, 69992000), (5, 55993600), (8, 34996000), (10, 27996800), (13, 21536000), (16, 17498000), (20, 13998400), (25, 11198720), (26, 10768000), (32, 8749000), (40, 6999200), (50, 5599360), (52, 5384000), (64, 4374500), (65, 4307200), (80, 3499600), (100, 2799680), (104, 2692000), (125, 2239744), (128, 2187250), (130, 2153600), (160, 1749800), (200, 1399840), (208, 1346000), (250, 1119872), (256, 1093625), (260, 1076800), (320, 874900), (325, 861440), (400, 699920), (416, 673000), (500, 559936), (520, 538400), (640, 437450), (650, 430720), (673, 416000), (800, 349960), (832, 336500), (1000, 279968), (1040, 269200), (1280, 218725), (1300, 215360), (1346, 208000), (1600, 174980), (1625, 172288), (1664, 168250), (2000, 139984), (2080, 134600), (2600, 107680), (2692, 104000), (3200, 87490), (3250, 86144), (3328, 84125), (3365, 83200), (4000, 69992), (4160, 67300), (5200, 53840), (5384, 52000), (6400, 43745), (6500, 43072), (6730, 41600), (8000, 34996), (8320, 33650), (8749, 32000), (10400, 26920), (10768, 26000), (13000, 21536), (13460, 20800), (16000, 17498), (16640, 16825)]