1320931460

素因数分解:

$2^2\times 5^1\times {\mathrm{823}}^1\times {\mathrm{80251}}^1$

素因数の和:81083

約数の個数: 24

約数和(自身を含む): 2777361216

約数和(自身を除く): 1456429756

約数列:

[1, 2, 4, 5, 10, 20, 823, 1646, 3292, 4115, 8230, 16460, 80251, 160502, 321004, 401255, 802510, 1605020, 66046573, 132093146, 264186292, 330232865, 660465730, 1320931460]

約数ペア:

[(1, 1320931460), (2, 660465730), (4, 330232865), (5, 264186292), (10, 132093146), (20, 66046573), (823, 1605020), (1646, 802510), (3292, 401255), (4115, 321004), (8230, 160502), (16460, 80251)]