81039538

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1\times {\mathrm{1667}}^1$

素因数の和:2001

約数の個数: 16

約数和(自身を含む): 123298560

約数和(自身を除く): 42259022

約数列:

[1, 2, 109, 218, 223, 446, 1667, 3334, 24307, 48614, 181703, 363406, 371741, 743482, 40519769, 81039538]

約数ペア:

[(1, 81039538), (2, 40519769), (109, 743482), (218, 371741), (223, 363406), (446, 181703), (1667, 48614), (3334, 24307)]