19988260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{58789}}^1$

素因数の和:58815

約数の個数: 24

約数和(自身を含む): 44445240

約数和(自身を除く): 24456980

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 58789, 117578, 235156, 293945, 587890, 999413, 1175780, 1998826, 3997652, 4997065, 9994130, 19988260]

約数ペア:

[(1, 19988260), (2, 9994130), (4, 4997065), (5, 3997652), (10, 1998826), (17, 1175780), (20, 999413), (34, 587890), (68, 293945), (85, 235156), (170, 117578), (340, 58789)]