820199425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{433}}^1\times {\mathrm{4457}}^1$

素因数の和:4917

約数の個数: 24

約数和(自身を含む): 1079602776

約数和(自身を除く): 259403351

約数列:

[1, 5, 17, 25, 85, 425, 433, 2165, 4457, 7361, 10825, 22285, 36805, 75769, 111425, 184025, 378845, 1894225, 1929881, 9649405, 32807977, 48247025, 164039885, 820199425]

約数ペア:

[(1, 820199425), (5, 164039885), (17, 48247025), (25, 32807977), (85, 9649405), (425, 1929881), (433, 1894225), (2165, 378845), (4457, 184025), (7361, 111425), (10825, 75769), (22285, 36805)]