201545725

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{8389}}^1$

素因数の和:8461

約数の個数: 18

約数和(自身を含む): 258269370

約数和(自身を除く): 56723645

約数列:

[1, 5, 25, 31, 155, 775, 961, 4805, 8389, 24025, 41945, 209725, 260059, 1300295, 6501475, 8061829, 40309145, 201545725]

約数ペア:

[(1, 201545725), (5, 40309145), (25, 8061829), (31, 6501475), (155, 1300295), (775, 260059), (961, 209725), (4805, 41945), (8389, 24025)]