81708540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1361809}}^1$

素因数の和:1361821

約数の個数: 24

約数和(自身を含む): 228784080

約数和(自身を除く): 147075540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1361809, 2723618, 4085427, 5447236, 6809045, 8170854, 13618090, 16341708, 20427135, 27236180, 40854270, 81708540]

約数ペア:

[(1, 81708540), (2, 40854270), (3, 27236180), (4, 20427135), (5, 16341708), (6, 13618090), (10, 8170854), (12, 6809045), (15, 5447236), (20, 4085427), (30, 2723618), (60, 1361809)]