40945725

素因数分解:

$3^2\times 5^2\times {\mathrm{181981}}^1$

素因数の和:181997

約数の個数: 18

約数和(自身を含む): 73338746

約数和(自身を除く): 32393021

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 181981, 545943, 909905, 1637829, 2729715, 4549525, 8189145, 13648575, 40945725]

約数ペア:

[(1, 40945725), (3, 13648575), (5, 8189145), (9, 4549525), (15, 2729715), (25, 1637829), (45, 909905), (75, 545943), (225, 181981)]