15640940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{111721}}^1$

素因数の和:111737

約数の個数: 24

約数和(自身を含む): 37538592

約数和(自身を除く): 21897652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 111721, 223442, 446884, 558605, 782047, 1117210, 1564094, 2234420, 3128188, 3910235, 7820470, 15640940]

約数ペア:

[(1, 15640940), (2, 7820470), (4, 3910235), (5, 3128188), (7, 2234420), (10, 1564094), (14, 1117210), (20, 782047), (28, 558605), (35, 446884), (70, 223442), (140, 111721)]