72450045

素因数分解:

$3^4\times 5^1\times {\mathrm{178889}}^1$

素因数の和:178906

約数の個数: 20

約数和(自身を含む): 129874140

約数和(自身を除く): 57424095

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 178889, 536667, 894445, 1610001, 2683335, 4830003, 8050005, 14490009, 24150015, 72450045]

約数ペア:

[(1, 72450045), (3, 24150015), (5, 14490009), (9, 8050005), (15, 4830003), (27, 2683335), (45, 1610001), (81, 894445), (135, 536667), (405, 178889)]