20702675

素因数分解:

$5^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:719

約数の個数: 24

約数和(自身を含む): 29512992

約数和(自身を除く): 8810317

約数列:

[1, 5, 7, 25, 35, 175, 281, 421, 1405, 1967, 2105, 2947, 7025, 9835, 10525, 14735, 49175, 73675, 118301, 591505, 828107, 2957525, 4140535, 20702675]

約数ペア:

[(1, 20702675), (5, 4140535), (7, 2957525), (25, 828107), (35, 591505), (175, 118301), (281, 73675), (421, 49175), (1405, 14735), (1967, 10525), (2105, 9835), (2947, 7025)]