20747891805

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{719}}^1\times {\mathrm{66337}}^1$

素因数の和:67093

約数の個数: 32

約数和(自身を含む): 34389619200

約数和(自身を除く): 13641727395

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 719, 2157, 3595, 10785, 20851, 62553, 66337, 104255, 199011, 312765, 331685, 995055, 1923773, 5771319, 9618865, 28856595, 47696303, 143088909, 238481515, 715444545, 1383192787, 4149578361, 6915963935, 20747891805]

約数ペア:

[(1, 20747891805), (3, 6915963935), (5, 4149578361), (15, 1383192787), (29, 715444545), (87, 238481515), (145, 143088909), (435, 47696303), (719, 28856595), (2157, 9618865), (3595, 5771319), (10785, 1923773), (20851, 995055), (62553, 331685), (66337, 312765), (104255, 199011)]