20122492

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{103}}^1$

素因数の和:167

約数の個数: 54

約数和(自身を含む): 40899768

約数和(自身を除く): 20777276

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 103, 169, 206, 221, 289, 338, 412, 442, 578, 676, 884, 1156, 1339, 1751, 2678, 2873, 3502, 3757, 5356, 5746, 7004, 7514, 11492, 15028, 17407, 22763, 29767, 34814, 45526, 48841, 59534, 69628, 91052, 97682, 119068, 195364, 295919, 386971, 591838, 773942, 1183676, 1547884, 5030623, 10061246, 20122492]

約数ペア:

[(1, 20122492), (2, 10061246), (4, 5030623), (13, 1547884), (17, 1183676), (26, 773942), (34, 591838), (52, 386971), (68, 295919), (103, 195364), (169, 119068), (206, 97682), (221, 91052), (289, 69628), (338, 59534), (412, 48841), (442, 45526), (578, 34814), (676, 29767), (884, 22763), (1156, 17407), (1339, 15028), (1751, 11492), (2678, 7514), (2873, 7004), (3502, 5746), (3757, 5356)]