261409920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{787}}^1$

素因数の和:982

約数の個数: 128

約数和(自身を含む): 839125440

約数和(自身を除く): 577715520

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, 160, 173, 192, 240, 320, 346, 384, 480, 519, 640, 692, 787, 865, 960, 1038, 1384, 1574, 1730, 1920, 2076, 2361, 2595, 2768, 3148, 3460, 3935, 4152, 4722, 5190, 5536, 6296, 6920, 7870, 8304, 9444, 10380, 11072, 11805, 12592, 13840, 15740, 16608, 18888, 20760, 22144, 23610, 25184, 27680, 31480, 33216, 37776, 41520, 47220, 50368, 55360, 62960, 66432, 75552, 83040, 94440, 100736, 110720, 125920, 136151, 151104, 166080, 188880, 251840, 272302, 302208, 332160, 377760, 408453, 503680, 544604, 680755, 755520, 816906, 1089208, 1361510, 1511040, 1633812, 2042265, 2178416, 2723020, 3267624, 4084530, 4356832, 5446040, 6535248, 8169060, 8713664, 10892080, 13070496, 16338120, 17427328, 21784160, 26140992, 32676240, 43568320, 52281984, 65352480, 87136640, 130704960, 261409920]

約数ペア:

[(1, 261409920), (2, 130704960), (3, 87136640), (4, 65352480), (5, 52281984), (6, 43568320), (8, 32676240), (10, 26140992), (12, 21784160), (15, 17427328), (16, 16338120), (20, 13070496), (24, 10892080), (30, 8713664), (32, 8169060), (40, 6535248), (48, 5446040), (60, 4356832), (64, 4084530), (80, 3267624), (96, 2723020), (120, 2178416), (128, 2042265), (160, 1633812), (173, 1511040), (192, 1361510), (240, 1089208), (320, 816906), (346, 755520), (384, 680755), (480, 544604), (519, 503680), (640, 408453), (692, 377760), (787, 332160), (865, 302208), (960, 272302), (1038, 251840), (1384, 188880), (1574, 166080), (1730, 151104), (1920, 136151), (2076, 125920), (2361, 110720), (2595, 100736), (2768, 94440), (3148, 83040), (3460, 75552), (3935, 66432), (4152, 62960), (4722, 55360), (5190, 50368), (5536, 47220), (6296, 41520), (6920, 37776), (7870, 33216), (8304, 31480), (9444, 27680), (10380, 25184), (11072, 23610), (11805, 22144), (12592, 20760), (13840, 18888), (15740, 16608)]