168991555

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 217002240

約数和(自身を除く): 48010685

約数列:

[1, 5, 29, 47, 137, 145, 181, 235, 685, 905, 1363, 3973, 5249, 6439, 6815, 8507, 19865, 24797, 26245, 32195, 42535, 123985, 186731, 246703, 719113, 933655, 1165459, 1233515, 3595565, 5827295, 33798311, 168991555]

約数ペア:

[(1, 168991555), (5, 33798311), (29, 5827295), (47, 3595565), (137, 1233515), (145, 1165459), (181, 933655), (235, 719113), (685, 246703), (905, 186731), (1363, 123985), (3973, 42535), (5249, 32195), (6439, 26245), (6815, 24797), (8507, 19865)]