51390556

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 108057600

約数和(自身を除く): 56667044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 199, 322, 398, 401, 644, 796, 802, 1393, 1604, 2786, 2807, 4577, 5572, 5614, 9154, 9223, 11228, 18308, 18446, 32039, 36892, 64078, 64561, 79799, 128156, 129122, 159598, 258244, 319196, 558593, 1117186, 1835377, 2234372, 3670754, 7341508, 12847639, 25695278, 51390556]

約数ペア:

[(1, 51390556), (2, 25695278), (4, 12847639), (7, 7341508), (14, 3670754), (23, 2234372), (28, 1835377), (46, 1117186), (92, 558593), (161, 319196), (199, 258244), (322, 159598), (398, 129122), (401, 128156), (644, 79799), (796, 64561), (802, 64078), (1393, 36892), (1604, 32039), (2786, 18446), (2807, 18308), (4577, 11228), (5572, 9223), (5614, 9154)]