181728765

素因数分解:

$3^7\times 5^1\times {\mathrm{16619}}^1$

素因数の和:16645

約数の個数: 32

約数和(自身を含む): 327081600

約数和(自身を除く): 145352835

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 2187, 3645, 10935, 16619, 49857, 83095, 149571, 249285, 448713, 747855, 1346139, 2243565, 4038417, 6730695, 12115251, 20192085, 36345753, 60576255, 181728765]

約数ペア:

[(1, 181728765), (3, 60576255), (5, 36345753), (9, 20192085), (15, 12115251), (27, 6730695), (45, 4038417), (81, 2243565), (135, 1346139), (243, 747855), (405, 448713), (729, 249285), (1215, 149571), (2187, 83095), (3645, 49857), (10935, 16619)]