81384145

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{2749}}^1$

素因数の和:2976

約数の個数: 16

約数和(自身を含む): 101376000

約数和(自身を除く): 19991855

約数列:

[1, 5, 31, 155, 191, 955, 2749, 5921, 13745, 29605, 85219, 426095, 525059, 2625295, 16276829, 81384145]

約数ペア:

[(1, 81384145), (5, 16276829), (31, 2625295), (155, 525059), (191, 426095), (955, 85219), (2749, 29605), (5921, 13745)]