12280520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:798

約数の個数: 64

約数和(自身を含む): 32140800

約数和(自身を除く): 19860280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 719, 854, 1220, 1438, 1708, 2135, 2440, 2876, 3416, 3595, 4270, 5033, 5752, 7190, 8540, 10066, 14380, 17080, 20132, 25165, 28760, 40264, 43859, 50330, 87718, 100660, 175436, 201320, 219295, 307013, 350872, 438590, 614026, 877180, 1228052, 1535065, 1754360, 2456104, 3070130, 6140260, 12280520]

約数ペア:

[(1, 12280520), (2, 6140260), (4, 3070130), (5, 2456104), (7, 1754360), (8, 1535065), (10, 1228052), (14, 877180), (20, 614026), (28, 438590), (35, 350872), (40, 307013), (56, 219295), (61, 201320), (70, 175436), (122, 100660), (140, 87718), (244, 50330), (280, 43859), (305, 40264), (427, 28760), (488, 25165), (610, 20132), (719, 17080), (854, 14380), (1220, 10066), (1438, 8540), (1708, 7190), (2135, 5752), (2440, 5033), (2876, 4270), (3416, 3595)]