27970640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:276

約数の個数: 80

約数和(自身を含む): 68352768

約数和(自身を除く): 40382128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 47, 80, 86, 94, 172, 173, 188, 215, 235, 344, 346, 376, 430, 470, 688, 692, 752, 860, 865, 940, 1384, 1720, 1730, 1880, 2021, 2768, 3440, 3460, 3760, 4042, 6920, 7439, 8084, 8131, 10105, 13840, 14878, 16168, 16262, 20210, 29756, 32336, 32524, 37195, 40420, 40655, 59512, 65048, 74390, 80840, 81310, 119024, 130096, 148780, 161680, 162620, 297560, 325240, 349633, 595120, 650480, 699266, 1398532, 1748165, 2797064, 3496330, 5594128, 6992660, 13985320, 27970640]

約数ペア:

[(1, 27970640), (2, 13985320), (4, 6992660), (5, 5594128), (8, 3496330), (10, 2797064), (16, 1748165), (20, 1398532), (40, 699266), (43, 650480), (47, 595120), (80, 349633), (86, 325240), (94, 297560), (172, 162620), (173, 161680), (188, 148780), (215, 130096), (235, 119024), (344, 81310), (346, 80840), (376, 74390), (430, 65048), (470, 59512), (688, 40655), (692, 40420), (752, 37195), (860, 32524), (865, 32336), (940, 29756), (1384, 20210), (1720, 16262), (1730, 16168), (1880, 14878), (2021, 13840), (2768, 10105), (3440, 8131), (3460, 8084), (3760, 7439), (4042, 6920)]