28872340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{761}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 69640704

約数和(自身を除く): 40768364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 271, 542, 761, 1084, 1355, 1522, 1897, 2710, 3044, 3794, 3805, 5327, 5420, 7588, 7610, 9485, 10654, 15220, 18970, 21308, 26635, 37940, 53270, 106540, 206231, 412462, 824924, 1031155, 1443617, 2062310, 2887234, 4124620, 5774468, 7218085, 14436170, 28872340]

約数ペア:

[(1, 28872340), (2, 14436170), (4, 7218085), (5, 5774468), (7, 4124620), (10, 2887234), (14, 2062310), (20, 1443617), (28, 1031155), (35, 824924), (70, 412462), (140, 206231), (271, 106540), (542, 53270), (761, 37940), (1084, 26635), (1355, 21308), (1522, 18970), (1897, 15220), (2710, 10654), (3044, 9485), (3794, 7610), (3805, 7588), (5327, 5420)]