257442080

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{4691}}^1$

素因数の和:4727

約数の個数: 96

約数和(自身を含む): 709430400

約数和(自身を除く): 451988320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1120, 1372, 1568, 1715, 1960, 2744, 3430, 3920, 4691, 5488, 6860, 7840, 9382, 10976, 13720, 18764, 23455, 27440, 32837, 37528, 46910, 54880, 65674, 75056, 93820, 131348, 150112, 164185, 187640, 229859, 262696, 328370, 375280, 459718, 525392, 656740, 750560, 919436, 1050784, 1149295, 1313480, 1609013, 1838872, 2298590, 2626960, 3218026, 3677744, 4597180, 5253920, 6436052, 7355488, 8045065, 9194360, 12872104, 16090130, 18388720, 25744208, 32180260, 36777440, 51488416, 64360520, 128721040, 257442080]

約数ペア:

[(1, 257442080), (2, 128721040), (4, 64360520), (5, 51488416), (7, 36777440), (8, 32180260), (10, 25744208), (14, 18388720), (16, 16090130), (20, 12872104), (28, 9194360), (32, 8045065), (35, 7355488), (40, 6436052), (49, 5253920), (56, 4597180), (70, 3677744), (80, 3218026), (98, 2626960), (112, 2298590), (140, 1838872), (160, 1609013), (196, 1313480), (224, 1149295), (245, 1050784), (280, 919436), (343, 750560), (392, 656740), (490, 525392), (560, 459718), (686, 375280), (784, 328370), (980, 262696), (1120, 229859), (1372, 187640), (1568, 164185), (1715, 150112), (1960, 131348), (2744, 93820), (3430, 75056), (3920, 65674), (4691, 54880), (5488, 46910), (6860, 37528), (7840, 32837), (9382, 27440), (10976, 23455), (13720, 18764)]