12258440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7127}}^1$

素因数の和:7181

約数の個数: 32

約数和(自身を含む): 28226880

約数和(自身を除く): 15968440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7127, 14254, 28508, 35635, 57016, 71270, 142540, 285080, 306461, 612922, 1225844, 1532305, 2451688, 3064610, 6129220, 12258440]

約数ペア:

[(1, 12258440), (2, 6129220), (4, 3064610), (5, 2451688), (8, 1532305), (10, 1225844), (20, 612922), (40, 306461), (43, 285080), (86, 142540), (172, 71270), (215, 57016), (344, 35635), (430, 28508), (860, 14254), (1720, 7127)]