729405

素因数分解:

$3^4\times 5^1\times {\mathrm{1801}}^1$

素因数の和:1818

約数の個数: 20

約数和(自身を含む): 1308252

約数和(自身を除く): 578847

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1801, 5403, 9005, 16209, 27015, 48627, 81045, 145881, 243135, 729405]

約数ペア:

[(1, 729405), (3, 243135), (5, 145881), (9, 81045), (15, 48627), (27, 27015), (45, 16209), (81, 9005), (135, 5403), (405, 1801)]