16642490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{439}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 15290950

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 223, 439, 446, 878, 1115, 2195, 2230, 3791, 4390, 7463, 7582, 14926, 18955, 37315, 37910, 74630, 97897, 195794, 489485, 978970, 1664249, 3328498, 8321245, 16642490]

約数ペア:

[(1, 16642490), (2, 8321245), (5, 3328498), (10, 1664249), (17, 978970), (34, 489485), (85, 195794), (170, 97897), (223, 74630), (439, 37910), (446, 37315), (878, 18955), (1115, 14926), (2195, 7582), (2230, 7463), (3791, 4390)]