28954240

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:330

約数の個数: 128

約数和(自身を含む): 82840320

約数和(自身を除く): 53886080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 280, 281, 320, 322, 368, 448, 460, 560, 562, 640, 644, 736, 805, 896, 920, 1120, 1124, 1288, 1405, 1472, 1610, 1840, 1967, 2240, 2248, 2576, 2810, 2944, 3220, 3680, 3934, 4480, 4496, 5152, 5620, 6440, 6463, 7360, 7868, 8992, 9835, 10304, 11240, 12880, 12926, 14720, 15736, 17984, 19670, 20608, 22480, 25760, 25852, 31472, 32315, 35968, 39340, 44960, 45241, 51520, 51704, 62944, 64630, 78680, 89920, 90482, 103040, 103408, 125888, 129260, 157360, 179840, 180964, 206816, 226205, 251776, 258520, 314720, 361928, 413632, 452410, 517040, 629440, 723856, 827264, 904820, 1034080, 1258880, 1447712, 1809640, 2068160, 2895424, 3619280, 4136320, 5790848, 7238560, 14477120, 28954240]

約数ペア:

[(1, 28954240), (2, 14477120), (4, 7238560), (5, 5790848), (7, 4136320), (8, 3619280), (10, 2895424), (14, 2068160), (16, 1809640), (20, 1447712), (23, 1258880), (28, 1034080), (32, 904820), (35, 827264), (40, 723856), (46, 629440), (56, 517040), (64, 452410), (70, 413632), (80, 361928), (92, 314720), (112, 258520), (115, 251776), (128, 226205), (140, 206816), (160, 180964), (161, 179840), (184, 157360), (224, 129260), (230, 125888), (280, 103408), (281, 103040), (320, 90482), (322, 89920), (368, 78680), (448, 64630), (460, 62944), (560, 51704), (562, 51520), (640, 45241), (644, 44960), (736, 39340), (805, 35968), (896, 32315), (920, 31472), (1120, 25852), (1124, 25760), (1288, 22480), (1405, 20608), (1472, 19670), (1610, 17984), (1840, 15736), (1967, 14720), (2240, 12926), (2248, 12880), (2576, 11240), (2810, 10304), (2944, 9835), (3220, 8992), (3680, 7868), (3934, 7360), (4480, 6463), (4496, 6440), (5152, 5620)]