81720585

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{44293}}^1$

素因数の和:44345

約数の個数: 24

約数和(自身を含む): 145107144

約数和(自身を除く): 63386559

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 44293, 132879, 221465, 398637, 664395, 1816013, 1993185, 5448039, 9080065, 16344117, 27240195, 81720585]

約数ペア:

[(1, 81720585), (3, 27240195), (5, 16344117), (9, 9080065), (15, 5448039), (41, 1993185), (45, 1816013), (123, 664395), (205, 398637), (369, 221465), (615, 132879), (1845, 44293)]