78745725

素因数分解:

$3^2\times 5^2\times {\mathrm{349981}}^1$

素因数の和:349997

約数の個数: 18

約数和(自身を含む): 141042746

約数和(自身を除く): 62297021

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 349981, 1049943, 1749905, 3149829, 5249715, 8749525, 15749145, 26248575, 78745725]

約数ペア:

[(1, 78745725), (3, 26248575), (5, 15749145), (9, 8749525), (15, 5249715), (25, 3149829), (45, 1749905), (75, 1049943), (225, 349981)]