28779040

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 96

約数和(自身を含む): 71850240

約数和(自身を除く): 43071200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 47, 80, 86, 89, 94, 160, 172, 178, 188, 215, 235, 344, 356, 376, 430, 445, 470, 688, 712, 752, 860, 890, 940, 1376, 1424, 1504, 1720, 1780, 1880, 2021, 2848, 3440, 3560, 3760, 3827, 4042, 4183, 6880, 7120, 7520, 7654, 8084, 8366, 10105, 14240, 15308, 16168, 16732, 19135, 20210, 20915, 30616, 32336, 33464, 38270, 40420, 41830, 61232, 64672, 66928, 76540, 80840, 83660, 122464, 133856, 153080, 161680, 167320, 179869, 306160, 323360, 334640, 359738, 612320, 669280, 719476, 899345, 1438952, 1798690, 2877904, 3597380, 5755808, 7194760, 14389520, 28779040]

約数ペア:

[(1, 28779040), (2, 14389520), (4, 7194760), (5, 5755808), (8, 3597380), (10, 2877904), (16, 1798690), (20, 1438952), (32, 899345), (40, 719476), (43, 669280), (47, 612320), (80, 359738), (86, 334640), (89, 323360), (94, 306160), (160, 179869), (172, 167320), (178, 161680), (188, 153080), (215, 133856), (235, 122464), (344, 83660), (356, 80840), (376, 76540), (430, 66928), (445, 64672), (470, 61232), (688, 41830), (712, 40420), (752, 38270), (860, 33464), (890, 32336), (940, 30616), (1376, 20915), (1424, 20210), (1504, 19135), (1720, 16732), (1780, 16168), (1880, 15308), (2021, 14240), (2848, 10105), (3440, 8366), (3560, 8084), (3760, 7654), (3827, 7520), (4042, 7120), (4183, 6880)]