72190845

素因数分解:

$3^4\times 5^1\times {\mathrm{178249}}^1$

素因数の和:178266

約数の個数: 20

約数和(自身を含む): 129409500

約数和(自身を除く): 57218655

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 178249, 534747, 891245, 1604241, 2673735, 4812723, 8021205, 14438169, 24063615, 72190845]

約数ペア:

[(1, 72190845), (3, 24063615), (5, 14438169), (9, 8021205), (15, 4812723), (27, 2673735), (45, 1604241), (81, 891245), (135, 534747), (405, 178249)]