72207045

素因数分解:

$3^4\times 5^1\times {\mathrm{178289}}^1$

素因数の和:178306

約数の個数: 20

約数和(自身を含む): 129438540

約数和(自身を除く): 57231495

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 178289, 534867, 891445, 1604601, 2674335, 4813803, 8023005, 14441409, 24069015, 72207045]

約数ペア:

[(1, 72207045), (3, 24069015), (5, 14441409), (9, 8023005), (15, 4813803), (27, 2674335), (45, 1604601), (81, 891445), (135, 534867), (405, 178289)]