20108296

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 41504400

約数和(自身を除く): 21396104

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 107, 139, 169, 214, 278, 338, 428, 556, 676, 856, 1112, 1352, 1391, 1807, 2782, 3614, 5564, 7228, 11128, 14456, 14873, 18083, 23491, 29746, 36166, 46982, 59492, 72332, 93964, 118984, 144664, 187928, 193349, 386698, 773396, 1546792, 2513537, 5027074, 10054148, 20108296]

約数ペア:

[(1, 20108296), (2, 10054148), (4, 5027074), (8, 2513537), (13, 1546792), (26, 773396), (52, 386698), (104, 193349), (107, 187928), (139, 144664), (169, 118984), (214, 93964), (278, 72332), (338, 59492), (428, 46982), (556, 36166), (676, 29746), (856, 23491), (1112, 18083), (1352, 14873), (1391, 14456), (1807, 11128), (2782, 7228), (3614, 5564)]