289669640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557057}}^1$

素因数の和:557081

約数の個数: 32

約数和(自身を含む): 701893080

約数和(自身を除く): 412223440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 557057, 1114114, 2228228, 2785285, 4456456, 5570570, 7241741, 11141140, 14483482, 22282280, 28966964, 36208705, 57933928, 72417410, 144834820, 289669640]

約数ペア:

[(1, 289669640), (2, 144834820), (4, 72417410), (5, 57933928), (8, 36208705), (10, 28966964), (13, 22282280), (20, 14483482), (26, 11141140), (40, 7241741), (52, 5570570), (65, 4456456), (104, 2785285), (130, 2228228), (260, 1114114), (520, 557057)]