257819702

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 471098880

約数和(自身を除く): 213279178

約数列:

[1, 2, 7, 14, 19, 38, 133, 139, 266, 278, 361, 367, 722, 734, 973, 1946, 2527, 2569, 2641, 5054, 5138, 5282, 6973, 13946, 18487, 36974, 48811, 50179, 51013, 97622, 100358, 102026, 132487, 264974, 351253, 357091, 702506, 714182, 927409, 969247, 1854818, 1938494, 6784729, 13569458, 18415693, 36831386, 128909851, 257819702]

約数ペア:

[(1, 257819702), (2, 128909851), (7, 36831386), (14, 18415693), (19, 13569458), (38, 6784729), (133, 1938494), (139, 1854818), (266, 969247), (278, 927409), (361, 714182), (367, 702506), (722, 357091), (734, 351253), (973, 264974), (1946, 132487), (2527, 102026), (2569, 100358), (2641, 97622), (5054, 51013), (5138, 50179), (5282, 48811), (6973, 36974), (13946, 18487)]