71781615

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{17923}}^1$

素因数の和:18023

約数の個数: 24

約数和(自身を含む): 125826480

約数和(自身を除く): 54044865

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 17923, 53769, 89615, 161307, 268845, 806535, 1595147, 4785441, 7975735, 14356323, 23927205, 71781615]

約数ペア:

[(1, 71781615), (3, 23927205), (5, 14356323), (9, 7975735), (15, 4785441), (45, 1595147), (89, 806535), (267, 268845), (445, 161307), (801, 89615), (1335, 53769), (4005, 17923)]