20548485

素因数分解:

$3^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:579

約数の個数: 40

約数和(自身を含む): 37243800

約数和(自身を除く): 16695315

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 113, 135, 339, 405, 449, 565, 1017, 1347, 1695, 2245, 3051, 4041, 5085, 6735, 9153, 12123, 15255, 20205, 36369, 45765, 50737, 60615, 152211, 181845, 253685, 456633, 761055, 1369899, 2283165, 4109697, 6849495, 20548485]

約数ペア:

[(1, 20548485), (3, 6849495), (5, 4109697), (9, 2283165), (15, 1369899), (27, 761055), (45, 456633), (81, 253685), (113, 181845), (135, 152211), (339, 60615), (405, 50737), (449, 45765), (565, 36369), (1017, 20205), (1347, 15255), (1695, 12123), (2245, 9153), (3051, 6735), (4041, 5085)]