1640791016

素因数分解:

$2^3\times {\mathrm{251}}^1\times {\mathrm{817127}}^1$

素因数の和:817384

約数の個数: 16

約数和(自身を含む): 3088743840

約数和(自身を除く): 1447952824

約数列:

[1, 2, 4, 8, 251, 502, 1004, 2008, 817127, 1634254, 3268508, 6537016, 205098877, 410197754, 820395508, 1640791016]

約数ペア:

[(1, 1640791016), (2, 820395508), (4, 410197754), (8, 205098877), (251, 6537016), (502, 3268508), (1004, 1634254), (2008, 817127)]