31880840

素因数分解:

$2^3\times 5^1\times {\mathrm{797021}}^1$

素因数の和:797032

約数の個数: 16

約数和(自身を含む): 71731980

約数和(自身を除く): 39851140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 797021, 1594042, 3188084, 3985105, 6376168, 7970210, 15940420, 31880840]

約数ペア:

[(1, 31880840), (2, 15940420), (4, 7970210), (5, 6376168), (8, 3985105), (10, 3188084), (20, 1594042), (40, 797021)]