20732265

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 39036816

約数和(自身を除く): 18304551

約数列:

[1, 3, 5, 9, 15, 17, 41, 45, 51, 85, 123, 153, 205, 255, 369, 615, 661, 697, 765, 1845, 1983, 2091, 3305, 3485, 5949, 6273, 9915, 10455, 11237, 27101, 29745, 31365, 33711, 56185, 81303, 101133, 135505, 168555, 243909, 406515, 460717, 505665, 1219545, 1382151, 2303585, 4146453, 6910755, 20732265]

約数ペア:

[(1, 20732265), (3, 6910755), (5, 4146453), (9, 2303585), (15, 1382151), (17, 1219545), (41, 505665), (45, 460717), (51, 406515), (85, 243909), (123, 168555), (153, 135505), (205, 101133), (255, 81303), (369, 56185), (615, 33711), (661, 31365), (697, 29745), (765, 27101), (1845, 11237), (1983, 10455), (2091, 9915), (3305, 6273), (3485, 5949)]