780876

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:318

約数の個数: 36

約数和(自身を含む): 2002000

約数和(自身を除く): 1221124

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 199, 218, 327, 398, 436, 597, 654, 796, 981, 1194, 1308, 1791, 1962, 2388, 3582, 3924, 7164, 21691, 43382, 65073, 86764, 130146, 195219, 260292, 390438, 780876]

約数ペア:

[(1, 780876), (2, 390438), (3, 260292), (4, 195219), (6, 130146), (9, 86764), (12, 65073), (18, 43382), (36, 21691), (109, 7164), (199, 3924), (218, 3582), (327, 2388), (398, 1962), (436, 1791), (597, 1308), (654, 1194), (796, 981)]