18240745

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4049}}^1$

素因数の和:4124

約数の個数: 16

約数和(自身を含む): 23619600

約数和(自身を除く): 5378855

約数列:

[1, 5, 17, 53, 85, 265, 901, 4049, 4505, 20245, 68833, 214597, 344165, 1072985, 3648149, 18240745]

約数ペア:

[(1, 18240745), (5, 3648149), (17, 1072985), (53, 344165), (85, 214597), (265, 68833), (901, 20245), (4049, 4505)]