20451230

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 17564770

約数列:

[1, 2, 5, 10, 43, 86, 199, 215, 239, 398, 430, 478, 995, 1195, 1990, 2390, 8557, 10277, 17114, 20554, 42785, 47561, 51385, 85570, 95122, 102770, 237805, 475610, 2045123, 4090246, 10225615, 20451230]

約数ペア:

[(1, 20451230), (2, 10225615), (5, 4090246), (10, 2045123), (43, 475610), (86, 237805), (199, 102770), (215, 95122), (239, 85570), (398, 51385), (430, 47561), (478, 42785), (995, 20554), (1195, 17114), (1990, 10277), (2390, 8557)]