28380800

素因数分解:

$2^7\times 5^2\times 7^2\times {\mathrm{181}}^1$

素因数の和:219

約数の個数: 144

約数和(自身を含む): 82006470

約数和(自身を除く): 53625670

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 128, 140, 160, 175, 181, 196, 200, 224, 245, 280, 320, 350, 362, 392, 400, 448, 490, 560, 640, 700, 724, 784, 800, 896, 905, 980, 1120, 1225, 1267, 1400, 1448, 1568, 1600, 1810, 1960, 2240, 2450, 2534, 2800, 2896, 3136, 3200, 3620, 3920, 4480, 4525, 4900, 5068, 5600, 5792, 6272, 6335, 7240, 7840, 8869, 9050, 9800, 10136, 11200, 11584, 12670, 14480, 15680, 17738, 18100, 19600, 20272, 22400, 23168, 25340, 28960, 31360, 31675, 35476, 36200, 39200, 40544, 44345, 50680, 57920, 63350, 70952, 72400, 78400, 81088, 88690, 101360, 115840, 126700, 141904, 144800, 156800, 162176, 177380, 202720, 221725, 253400, 283808, 289600, 354760, 405440, 443450, 506800, 567616, 579200, 709520, 810880, 886900, 1013600, 1135232, 1419040, 1773800, 2027200, 2838080, 3547600, 4054400, 5676160, 7095200, 14190400, 28380800]

約数ペア:

[(1, 28380800), (2, 14190400), (4, 7095200), (5, 5676160), (7, 4054400), (8, 3547600), (10, 2838080), (14, 2027200), (16, 1773800), (20, 1419040), (25, 1135232), (28, 1013600), (32, 886900), (35, 810880), (40, 709520), (49, 579200), (50, 567616), (56, 506800), (64, 443450), (70, 405440), (80, 354760), (98, 289600), (100, 283808), (112, 253400), (128, 221725), (140, 202720), (160, 177380), (175, 162176), (181, 156800), (196, 144800), (200, 141904), (224, 126700), (245, 115840), (280, 101360), (320, 88690), (350, 81088), (362, 78400), (392, 72400), (400, 70952), (448, 63350), (490, 57920), (560, 50680), (640, 44345), (700, 40544), (724, 39200), (784, 36200), (800, 35476), (896, 31675), (905, 31360), (980, 28960), (1120, 25340), (1225, 23168), (1267, 22400), (1400, 20272), (1448, 19600), (1568, 18100), (1600, 17738), (1810, 15680), (1960, 14480), (2240, 12670), (2450, 11584), (2534, 11200), (2800, 10136), (2896, 9800), (3136, 9050), (3200, 8869), (3620, 7840), (3920, 7240), (4480, 6335), (4525, 6272), (4900, 5792), (5068, 5600)]