641354285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{30931}}^1$

素因数の和:30989

約数の個数: 32

約数和(自身を含む): 935383680

約数和(自身を除く): 294029395

約数列:

[1, 5, 11, 13, 29, 55, 65, 143, 145, 319, 377, 715, 1595, 1885, 4147, 20735, 30931, 154655, 340241, 402103, 896999, 1701205, 2010515, 4423133, 4484995, 9866989, 11660987, 22115665, 49334945, 58304935, 128270857, 641354285]

約数ペア:

[(1, 641354285), (5, 128270857), (11, 58304935), (13, 49334945), (29, 22115665), (55, 11660987), (65, 9866989), (143, 4484995), (145, 4423133), (319, 2010515), (377, 1701205), (715, 896999), (1595, 402103), (1885, 340241), (4147, 154655), (20735, 30931)]