39894478

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:229

約数の個数: 48

約数和(自身を含む): 70438896

約数和(自身を除く): 30544418

約数列:

[1, 2, 13, 17, 26, 34, 53, 106, 131, 169, 221, 262, 338, 442, 689, 901, 1378, 1703, 1802, 2227, 2873, 3406, 4454, 5746, 6943, 8957, 11713, 13886, 17914, 22139, 23426, 28951, 44278, 57902, 90259, 118031, 152269, 180518, 236062, 304538, 376363, 752726, 1173367, 1534403, 2346734, 3068806, 19947239, 39894478]

約数ペア:

[(1, 39894478), (2, 19947239), (13, 3068806), (17, 2346734), (26, 1534403), (34, 1173367), (53, 752726), (106, 376363), (131, 304538), (169, 236062), (221, 180518), (262, 152269), (338, 118031), (442, 90259), (689, 57902), (901, 44278), (1378, 28951), (1703, 23426), (1802, 22139), (2227, 17914), (2873, 13886), (3406, 11713), (4454, 8957), (5746, 6943)]