28244255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 10075873

約数列:

[1, 5, 13, 31, 65, 107, 131, 155, 403, 535, 655, 1391, 1703, 2015, 3317, 4061, 6955, 8515, 14017, 16585, 20305, 43121, 52793, 70085, 182221, 215605, 263965, 434527, 911105, 2172635, 5648851, 28244255]

約数ペア:

[(1, 28244255), (5, 5648851), (13, 2172635), (31, 911105), (65, 434527), (107, 263965), (131, 215605), (155, 182221), (403, 70085), (535, 52793), (655, 43121), (1391, 20305), (1703, 16585), (2015, 14017), (3317, 8515), (4061, 6955)]