81251650

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{30661}}^1$

素因数の和:30726

約数の個数: 24

約数和(自身を含む): 153984564

約数和(自身を除く): 72732914

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 265, 530, 1325, 2650, 30661, 61322, 153305, 306610, 766525, 1533050, 1625033, 3250066, 8125165, 16250330, 40625825, 81251650]

約数ペア:

[(1, 81251650), (2, 40625825), (5, 16250330), (10, 8125165), (25, 3250066), (50, 1625033), (53, 1533050), (106, 766525), (265, 306610), (530, 153305), (1325, 61322), (2650, 30661)]