19888080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{479}}^1$

素因数の和:668

約数の個数: 80

約数和(自身を含む): 62138880

約数和(自身を除く): 42250800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 173, 240, 346, 479, 519, 692, 865, 958, 1038, 1384, 1437, 1730, 1916, 2076, 2395, 2595, 2768, 2874, 3460, 3832, 4152, 4790, 5190, 5748, 6920, 7185, 7664, 8304, 9580, 10380, 11496, 13840, 14370, 19160, 20760, 22992, 28740, 38320, 41520, 57480, 82867, 114960, 165734, 248601, 331468, 414335, 497202, 662936, 828670, 994404, 1243005, 1325872, 1657340, 1988808, 2486010, 3314680, 3977616, 4972020, 6629360, 9944040, 19888080]

約数ペア:

[(1, 19888080), (2, 9944040), (3, 6629360), (4, 4972020), (5, 3977616), (6, 3314680), (8, 2486010), (10, 1988808), (12, 1657340), (15, 1325872), (16, 1243005), (20, 994404), (24, 828670), (30, 662936), (40, 497202), (48, 414335), (60, 331468), (80, 248601), (120, 165734), (173, 114960), (240, 82867), (346, 57480), (479, 41520), (519, 38320), (692, 28740), (865, 22992), (958, 20760), (1038, 19160), (1384, 14370), (1437, 13840), (1730, 11496), (1916, 10380), (2076, 9580), (2395, 8304), (2595, 7664), (2768, 7185), (2874, 6920), (3460, 5748), (3832, 5190), (4152, 4790)]