1640785055

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{124349}}^1$

素因数の和:124403

約数の個数: 32

約数和(自身を含む): 2506896000

約数和(自身を除く): 866110945

約数列:

[1, 5, 7, 13, 29, 35, 65, 91, 145, 203, 377, 455, 1015, 1885, 2639, 13195, 124349, 621745, 870443, 1616537, 3606121, 4352215, 8082685, 11315759, 18030605, 25242847, 46879573, 56578795, 126214235, 234397865, 328157011, 1640785055]

約数ペア:

[(1, 1640785055), (5, 328157011), (7, 234397865), (13, 126214235), (29, 56578795), (35, 46879573), (65, 25242847), (91, 18030605), (145, 11315759), (203, 8082685), (377, 4352215), (455, 3606121), (1015, 1616537), (1885, 870443), (2639, 621745), (13195, 124349)]