28642025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3547}}^1$

素因数の和:3593

約数の個数: 24

約数和(自身を含む): 39595680

約数和(自身を除く): 10953655

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 3547, 8075, 17735, 60299, 67393, 88675, 301495, 336965, 1145681, 1507475, 1684825, 5728405, 28642025]

約数ペア:

[(1, 28642025), (5, 5728405), (17, 1684825), (19, 1507475), (25, 1145681), (85, 336965), (95, 301495), (323, 88675), (425, 67393), (475, 60299), (1615, 17735), (3547, 8075)]