20803922015

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1\times {\mathrm{983}}^1$

素因数の和:1607

約数の個数: 32

約数和(自身を含む): 25561958400

約数和(自身を除く): 4758036385

約数列:

[1, 5, 79, 131, 395, 409, 655, 983, 2045, 4915, 10349, 32311, 51745, 53579, 77657, 128773, 161555, 267895, 388285, 402047, 643865, 2010235, 4232741, 10173067, 21163705, 31761713, 50865335, 52668157, 158808565, 263340785, 4160784403, 20803922015]

約数ペア:

[(1, 20803922015), (5, 4160784403), (79, 263340785), (131, 158808565), (395, 52668157), (409, 50865335), (655, 31761713), (983, 21163705), (2045, 10173067), (4915, 4232741), (10349, 2010235), (32311, 643865), (51745, 402047), (53579, 388285), (77657, 267895), (128773, 161555)]