20630360

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1627}}^1$

素因数の和:1955

約数の個数: 32

約数和(自身を含む): 46593360

約数和(自身を除く): 25963000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 1627, 2536, 3170, 3254, 6340, 6508, 8135, 12680, 13016, 16270, 32540, 65080, 515759, 1031518, 2063036, 2578795, 4126072, 5157590, 10315180, 20630360]

約数ペア:

[(1, 20630360), (2, 10315180), (4, 5157590), (5, 4126072), (8, 2578795), (10, 2063036), (20, 1031518), (40, 515759), (317, 65080), (634, 32540), (1268, 16270), (1585, 13016), (1627, 12680), (2536, 8135), (3170, 6508), (3254, 6340)]