28784630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 61890048

約数和(自身を除く): 33105418

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 73, 86, 131, 146, 215, 262, 301, 365, 430, 511, 602, 655, 730, 917, 1022, 1310, 1505, 1834, 2555, 3010, 3139, 4585, 5110, 5633, 6278, 9170, 9563, 11266, 15695, 19126, 21973, 28165, 31390, 39431, 43946, 47815, 56330, 66941, 78862, 95630, 109865, 133882, 197155, 219730, 334705, 394310, 411209, 669410, 822418, 2056045, 2878463, 4112090, 5756926, 14392315, 28784630]

約数ペア:

[(1, 28784630), (2, 14392315), (5, 5756926), (7, 4112090), (10, 2878463), (14, 2056045), (35, 822418), (43, 669410), (70, 411209), (73, 394310), (86, 334705), (131, 219730), (146, 197155), (215, 133882), (262, 109865), (301, 95630), (365, 78862), (430, 66941), (511, 56330), (602, 47815), (655, 43946), (730, 39431), (917, 31390), (1022, 28165), (1310, 21973), (1505, 19126), (1834, 15695), (2555, 11266), (3010, 9563), (3139, 9170), (4585, 6278), (5110, 5633)]