18355985

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1783}}^1$

素因数の和:1888

約数の個数: 16

約数和(自身を含む): 23120640

約数和(自身を除く): 4764655

約数列:

[1, 5, 29, 71, 145, 355, 1783, 2059, 8915, 10295, 51707, 126593, 258535, 632965, 3671197, 18355985]

約数ペア:

[(1, 18355985), (5, 3671197), (29, 632965), (71, 258535), (145, 126593), (355, 51707), (1783, 10295), (2059, 8915)]