157211685

素因数分解:

$3^4\times 5^1\times {\mathrm{388177}}^1$

素因数の和:388194

約数の個数: 20

約数和(自身を含む): 281817228

約数和(自身を除く): 124605543

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 388177, 1164531, 1940885, 3493593, 5822655, 10480779, 17467965, 31442337, 52403895, 157211685]

約数ペア:

[(1, 157211685), (3, 52403895), (5, 31442337), (9, 17467965), (15, 10480779), (27, 5822655), (45, 3493593), (81, 1940885), (135, 1164531), (405, 388177)]