280930560

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{491}}^1$

素因数の和:664

約数の個数: 144

約数和(自身を含む): 905083200

約数和(自身を除く): 624152640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 149, 160, 192, 240, 256, 298, 320, 384, 447, 480, 491, 596, 640, 745, 768, 894, 960, 982, 1192, 1280, 1473, 1490, 1788, 1920, 1964, 2235, 2384, 2455, 2946, 2980, 3576, 3840, 3928, 4470, 4768, 4910, 5892, 5960, 7152, 7365, 7856, 8940, 9536, 9820, 11784, 11920, 14304, 14730, 15712, 17880, 19072, 19640, 23568, 23840, 28608, 29460, 31424, 35760, 38144, 39280, 47136, 47680, 57216, 58920, 62848, 71520, 73159, 78560, 94272, 95360, 114432, 117840, 125696, 143040, 146318, 157120, 188544, 190720, 219477, 235680, 286080, 292636, 314240, 365795, 377088, 438954, 471360, 572160, 585272, 628480, 731590, 877908, 942720, 1097385, 1170544, 1463180, 1755816, 1885440, 2194770, 2341088, 2926360, 3511632, 4389540, 4682176, 5852720, 7023264, 8779080, 9364352, 11705440, 14046528, 17558160, 18728704, 23410880, 28093056, 35116320, 46821760, 56186112, 70232640, 93643520, 140465280, 280930560]

約数ペア:

[(1, 280930560), (2, 140465280), (3, 93643520), (4, 70232640), (5, 56186112), (6, 46821760), (8, 35116320), (10, 28093056), (12, 23410880), (15, 18728704), (16, 17558160), (20, 14046528), (24, 11705440), (30, 9364352), (32, 8779080), (40, 7023264), (48, 5852720), (60, 4682176), (64, 4389540), (80, 3511632), (96, 2926360), (120, 2341088), (128, 2194770), (149, 1885440), (160, 1755816), (192, 1463180), (240, 1170544), (256, 1097385), (298, 942720), (320, 877908), (384, 731590), (447, 628480), (480, 585272), (491, 572160), (596, 471360), (640, 438954), (745, 377088), (768, 365795), (894, 314240), (960, 292636), (982, 286080), (1192, 235680), (1280, 219477), (1473, 190720), (1490, 188544), (1788, 157120), (1920, 146318), (1964, 143040), (2235, 125696), (2384, 117840), (2455, 114432), (2946, 95360), (2980, 94272), (3576, 78560), (3840, 73159), (3928, 71520), (4470, 62848), (4768, 58920), (4910, 57216), (5892, 47680), (5960, 47136), (7152, 39280), (7365, 38144), (7856, 35760), (8940, 31424), (9536, 29460), (9820, 28608), (11784, 23840), (11920, 23568), (14304, 19640), (14730, 19072), (15712, 17880)]