81251878

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1\times {\mathrm{1039}}^1$

素因数の和:1743

約数の個数: 16

約数和(自身を含む): 124188480

約数和(自身を除く): 42936602

約数列:

[1, 2, 61, 122, 641, 1039, 1282, 2078, 39101, 63379, 78202, 126758, 665999, 1331998, 40625939, 81251878]

約数ペア:

[(1, 81251878), (2, 40625939), (61, 1331998), (122, 665999), (641, 126758), (1039, 78202), (1282, 63379), (2078, 39101)]