56139520

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:801

約数の個数: 72

約数和(自身を含む): 136866240

約数和(自身を除く): 80726720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 719, 976, 1220, 1280, 1438, 1952, 2440, 2876, 3595, 3904, 4880, 5752, 7190, 7808, 9760, 11504, 14380, 15616, 19520, 23008, 28760, 39040, 43859, 46016, 57520, 78080, 87718, 92032, 115040, 175436, 184064, 219295, 230080, 350872, 438590, 460160, 701744, 877180, 920320, 1403488, 1754360, 2806976, 3508720, 5613952, 7017440, 11227904, 14034880, 28069760, 56139520]

約数ペア:

[(1, 56139520), (2, 28069760), (4, 14034880), (5, 11227904), (8, 7017440), (10, 5613952), (16, 3508720), (20, 2806976), (32, 1754360), (40, 1403488), (61, 920320), (64, 877180), (80, 701744), (122, 460160), (128, 438590), (160, 350872), (244, 230080), (256, 219295), (305, 184064), (320, 175436), (488, 115040), (610, 92032), (640, 87718), (719, 78080), (976, 57520), (1220, 46016), (1280, 43859), (1438, 39040), (1952, 28760), (2440, 23008), (2876, 19520), (3595, 15616), (3904, 14380), (4880, 11504), (5752, 9760), (7190, 7808)]