21623840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:514

約数の個数: 96

約数和(自身を含む): 59875200

約数和(自身を除く): 38251360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 70, 80, 86, 112, 140, 160, 172, 215, 224, 280, 301, 344, 430, 449, 560, 602, 688, 860, 898, 1120, 1204, 1376, 1505, 1720, 1796, 2245, 2408, 3010, 3143, 3440, 3592, 4490, 4816, 6020, 6286, 6880, 7184, 8980, 9632, 12040, 12572, 14368, 15715, 17960, 19307, 24080, 25144, 31430, 35920, 38614, 48160, 50288, 62860, 71840, 77228, 96535, 100576, 125720, 135149, 154456, 193070, 251440, 270298, 308912, 386140, 502880, 540596, 617824, 675745, 772280, 1081192, 1351490, 1544560, 2162384, 2702980, 3089120, 4324768, 5405960, 10811920, 21623840]

約数ペア:

[(1, 21623840), (2, 10811920), (4, 5405960), (5, 4324768), (7, 3089120), (8, 2702980), (10, 2162384), (14, 1544560), (16, 1351490), (20, 1081192), (28, 772280), (32, 675745), (35, 617824), (40, 540596), (43, 502880), (56, 386140), (70, 308912), (80, 270298), (86, 251440), (112, 193070), (140, 154456), (160, 135149), (172, 125720), (215, 100576), (224, 96535), (280, 77228), (301, 71840), (344, 62860), (430, 50288), (449, 48160), (560, 38614), (602, 35920), (688, 31430), (860, 25144), (898, 24080), (1120, 19307), (1204, 17960), (1376, 15715), (1505, 14368), (1720, 12572), (1796, 12040), (2245, 9632), (2408, 8980), (3010, 7184), (3143, 6880), (3440, 6286), (3592, 6020), (4490, 4816)]