81942540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1365709}}^1$

素因数の和:1365721

約数の個数: 24

約数和(自身を含む): 229439280

約数和(自身を除く): 147496740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1365709, 2731418, 4097127, 5462836, 6828545, 8194254, 13657090, 16388508, 20485635, 27314180, 40971270, 81942540]

約数ペア:

[(1, 81942540), (2, 40971270), (3, 27314180), (4, 20485635), (5, 16388508), (6, 13657090), (10, 8194254), (12, 6828545), (15, 5462836), (20, 4097127), (30, 2731418), (60, 1365709)]