72443565

素因数分解:

$3^4\times 5^1\times {\mathrm{178873}}^1$

素因数の和:178890

約数の個数: 20

約数和(自身を含む): 129862524

約数和(自身を除く): 57418959

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 178873, 536619, 894365, 1609857, 2683095, 4829571, 8049285, 14488713, 24147855, 72443565]

約数ペア:

[(1, 72443565), (3, 24147855), (5, 14488713), (9, 8049285), (15, 4829571), (27, 2683095), (45, 1609857), (81, 894365), (135, 536619), (405, 178873)]