220137985

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{21383}}^1$

素因数の和:21488

約数の個数: 16

約数和(自身を含む): 277136640

約数和(自身を除く): 56998655

約数列:

[1, 5, 29, 71, 145, 355, 2059, 10295, 21383, 106915, 620107, 1518193, 3100535, 7590965, 44027597, 220137985]

約数ペア:

[(1, 220137985), (5, 44027597), (29, 7590965), (71, 3100535), (145, 1518193), (355, 620107), (2059, 106915), (10295, 21383)]