145389640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{330431}}^1$

素因数の和:330453

約数の個数: 32

約数和(自身を含む): 356866560

約数和(自身を除く): 211476920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 330431, 660862, 1321724, 1652155, 2643448, 3304310, 3634741, 6608620, 7269482, 13217240, 14538964, 18173705, 29077928, 36347410, 72694820, 145389640]

約数ペア:

[(1, 145389640), (2, 72694820), (4, 36347410), (5, 29077928), (8, 18173705), (10, 14538964), (11, 13217240), (20, 7269482), (22, 6608620), (40, 3634741), (44, 3304310), (55, 2643448), (88, 1652155), (110, 1321724), (220, 660862), (440, 330431)]