15421280

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{281}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 42638400

約数和(自身を除く): 27217120

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, 281, 343, 392, 490, 560, 562, 686, 784, 980, 1120, 1124, 1372, 1405, 1568, 1715, 1960, 1967, 2248, 2744, 2810, 3430, 3920, 3934, 4496, 5488, 5620, 6860, 7840, 7868, 8992, 9835, 10976, 11240, 13720, 13769, 15736, 19670, 22480, 27440, 27538, 31472, 39340, 44960, 54880, 55076, 62944, 68845, 78680, 96383, 110152, 137690, 157360, 192766, 220304, 275380, 314720, 385532, 440608, 481915, 550760, 771064, 963830, 1101520, 1542128, 1927660, 2203040, 3084256, 3855320, 7710640, 15421280]

約数ペア:

[(1, 15421280), (2, 7710640), (4, 3855320), (5, 3084256), (7, 2203040), (8, 1927660), (10, 1542128), (14, 1101520), (16, 963830), (20, 771064), (28, 550760), (32, 481915), (35, 440608), (40, 385532), (49, 314720), (56, 275380), (70, 220304), (80, 192766), (98, 157360), (112, 137690), (140, 110152), (160, 96383), (196, 78680), (224, 68845), (245, 62944), (280, 55076), (281, 54880), (343, 44960), (392, 39340), (490, 31472), (560, 27538), (562, 27440), (686, 22480), (784, 19670), (980, 15736), (1120, 13769), (1124, 13720), (1372, 11240), (1405, 10976), (1568, 9835), (1715, 8992), (1960, 7868), (1967, 7840), (2248, 6860), (2744, 5620), (2810, 5488), (3430, 4496), (3920, 3934)]