20145949876

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29801701}}^1$

素因数の和:29801731

約数の個数: 18

約数和(自身を含む): 38175980262

約数和(自身を除く): 18030030386

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 29801701, 59603402, 119206804, 387422113, 774844226, 1549688452, 5036487469, 10072974938, 20145949876]

約数ペア:

[(1, 20145949876), (2, 10072974938), (4, 5036487469), (13, 1549688452), (26, 774844226), (52, 387422113), (169, 119206804), (338, 59603402), (676, 29801701)]