20690678456

素因数分解:

$2^3\times 7^2\times {\mathrm{127}}^1\times {\mathrm{415609}}^1$

素因数の和:415756

約数の個数: 48

約数和(自身を含む): 45484358400

約数和(自身を除く): 24793679944

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 127, 196, 254, 392, 508, 889, 1016, 1778, 3556, 6223, 7112, 12446, 24892, 49784, 415609, 831218, 1662436, 2909263, 3324872, 5818526, 11637052, 20364841, 23274104, 40729682, 52782343, 81459364, 105564686, 162918728, 211129372, 369476401, 422258744, 738952802, 1477905604, 2586334807, 2955811208, 5172669614, 10345339228, 20690678456]

約数ペア:

[(1, 20690678456), (2, 10345339228), (4, 5172669614), (7, 2955811208), (8, 2586334807), (14, 1477905604), (28, 738952802), (49, 422258744), (56, 369476401), (98, 211129372), (127, 162918728), (196, 105564686), (254, 81459364), (392, 52782343), (508, 40729682), (889, 23274104), (1016, 20364841), (1778, 11637052), (3556, 5818526), (6223, 3324872), (7112, 2909263), (12446, 1662436), (24892, 831218), (49784, 415609)]