80109640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{154057}}^1$

素因数の和:154081

約数の個数: 32

約数和(自身を含む): 194113080

約数和(自身を除く): 114003440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 154057, 308114, 616228, 770285, 1232456, 1540570, 2002741, 3081140, 4005482, 6162280, 8010964, 10013705, 16021928, 20027410, 40054820, 80109640]

約数ペア:

[(1, 80109640), (2, 40054820), (4, 20027410), (5, 16021928), (8, 10013705), (10, 8010964), (13, 6162280), (20, 4005482), (26, 3081140), (40, 2002741), (52, 1540570), (65, 1232456), (104, 770285), (130, 616228), (260, 308114), (520, 154057)]