208520728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1409}}^1\times {\mathrm{1423}}^1$

素因数の和:2851

約数の個数: 32

約数和(自身を含む): 421646400

約数和(自身を除く): 213125672

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1409, 1423, 2818, 2846, 5636, 5692, 11272, 11384, 18317, 18499, 36634, 36998, 73268, 73996, 146536, 147992, 2005007, 4010014, 8020028, 16040056, 26065091, 52130182, 104260364, 208520728]

約数ペア:

[(1, 208520728), (2, 104260364), (4, 52130182), (8, 26065091), (13, 16040056), (26, 8020028), (52, 4010014), (104, 2005007), (1409, 147992), (1423, 146536), (2818, 73996), (2846, 73268), (5636, 36998), (5692, 36634), (11272, 18499), (11384, 18317)]