20178233936

素因数分解:

$2^4\times 7^1\times {\mathrm{1621}}^1\times {\mathrm{111143}}^1$

素因数の和:112779

約数の個数: 40

約数和(自身を含む): 44708340864

約数和(自身を除く): 24530106928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1621, 3242, 6484, 11347, 12968, 22694, 25936, 45388, 90776, 111143, 181552, 222286, 444572, 778001, 889144, 1556002, 1778288, 3112004, 6224008, 12448016, 180162803, 360325606, 720651212, 1261139621, 1441302424, 2522279242, 2882604848, 5044558484, 10089116968, 20178233936]

約数ペア:

[(1, 20178233936), (2, 10089116968), (4, 5044558484), (7, 2882604848), (8, 2522279242), (14, 1441302424), (16, 1261139621), (28, 720651212), (56, 360325606), (112, 180162803), (1621, 12448016), (3242, 6224008), (6484, 3112004), (11347, 1778288), (12968, 1556002), (22694, 889144), (25936, 778001), (45388, 444572), (90776, 222286), (111143, 181552)]