18874240

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1$

素因数の和:420

約数の個数: 128

約数和(自身を含む): 56401920

約数和(自身を除く): 37527680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 383, 385, 440, 448, 560, 616, 640, 704, 766, 770, 880, 896, 1120, 1232, 1408, 1532, 1540, 1760, 1915, 2240, 2464, 2681, 3064, 3080, 3520, 3830, 4213, 4480, 4928, 5362, 6128, 6160, 7040, 7660, 8426, 9856, 10724, 12256, 12320, 13405, 15320, 16852, 21065, 21448, 24512, 24640, 26810, 29491, 30640, 33704, 42130, 42896, 49024, 49280, 53620, 58982, 61280, 67408, 84260, 85792, 107240, 117964, 122560, 134816, 147455, 168520, 171584, 214480, 235928, 245120, 269632, 294910, 337040, 343168, 428960, 471856, 539264, 589820, 674080, 857920, 943712, 1179640, 1348160, 1715840, 1887424, 2359280, 2696320, 3774848, 4718560, 9437120, 18874240]

約数ペア:

[(1, 18874240), (2, 9437120), (4, 4718560), (5, 3774848), (7, 2696320), (8, 2359280), (10, 1887424), (11, 1715840), (14, 1348160), (16, 1179640), (20, 943712), (22, 857920), (28, 674080), (32, 589820), (35, 539264), (40, 471856), (44, 428960), (55, 343168), (56, 337040), (64, 294910), (70, 269632), (77, 245120), (80, 235928), (88, 214480), (110, 171584), (112, 168520), (128, 147455), (140, 134816), (154, 122560), (160, 117964), (176, 107240), (220, 85792), (224, 84260), (280, 67408), (308, 61280), (320, 58982), (352, 53620), (383, 49280), (385, 49024), (440, 42896), (448, 42130), (560, 33704), (616, 30640), (640, 29491), (704, 26810), (766, 24640), (770, 24512), (880, 21448), (896, 21065), (1120, 16852), (1232, 15320), (1408, 13405), (1532, 12320), (1540, 12256), (1760, 10724), (1915, 9856), (2240, 8426), (2464, 7660), (2681, 7040), (3064, 6160), (3080, 6128), (3520, 5362), (3830, 4928), (4213, 4480)]