81973648

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{138469}}^1$

素因数の和:138514

約数の個数: 20

約数和(自身を含む): 163117660

約数和(自身を除く): 81144012

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 138469, 276938, 553876, 1107752, 2215504, 5123353, 10246706, 20493412, 40986824, 81973648]

約数ペア:

[(1, 81973648), (2, 40986824), (4, 20493412), (8, 10246706), (16, 5123353), (37, 2215504), (74, 1107752), (148, 553876), (296, 276938), (592, 138469)]