81389296

素因数分解:

$2^4\times {\mathrm{1229}}^1\times {\mathrm{4139}}^1$

素因数の和:5376

約数の個数: 20

約数和(自身を含む): 157858200

約数和(自身を除く): 76468904

約数列:

[1, 2, 4, 8, 16, 1229, 2458, 4139, 4916, 8278, 9832, 16556, 19664, 33112, 66224, 5086831, 10173662, 20347324, 40694648, 81389296]

約数ペア:

[(1, 81389296), (2, 40694648), (4, 20347324), (8, 10173662), (16, 5086831), (1229, 66224), (2458, 33112), (4139, 19664), (4916, 16556), (8278, 9832)]