20161296275

素因数分解:

$5^2\times {\mathrm{131}}^1\times {\mathrm{167}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 25606361088

約数和(自身を除く): 5445064813

約数列:

[1, 5, 25, 131, 167, 191, 193, 655, 835, 955, 965, 3275, 4175, 4775, 4825, 21877, 25021, 25283, 31897, 32231, 36863, 109385, 125105, 126415, 159485, 161155, 184315, 546925, 625525, 632075, 797425, 805775, 921575, 4178507, 4222261, 4829053, 6156121, 20892535, 21111305, 24145265, 30780605, 104462675, 105556525, 120726325, 153903025, 806451851, 4032259255, 20161296275]

約数ペア:

[(1, 20161296275), (5, 4032259255), (25, 806451851), (131, 153903025), (167, 120726325), (191, 105556525), (193, 104462675), (655, 30780605), (835, 24145265), (955, 21111305), (965, 20892535), (3275, 6156121), (4175, 4829053), (4775, 4222261), (4825, 4178507), (21877, 921575), (25021, 805775), (25283, 797425), (31897, 632075), (32231, 625525), (36863, 546925), (109385, 184315), (125105, 161155), (126415, 159485)]