207521285

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 264591360

約数和(自身を除く): 57070075

約数列:

[1, 5, 31, 71, 109, 155, 173, 355, 545, 865, 2201, 3379, 5363, 7739, 11005, 12283, 16895, 18857, 26815, 38695, 61415, 94285, 239909, 380773, 584567, 1199545, 1338847, 1903865, 2922835, 6694235, 41504257, 207521285]

約数ペア:

[(1, 207521285), (5, 41504257), (31, 6694235), (71, 2922835), (109, 1903865), (155, 1338847), (173, 1199545), (355, 584567), (545, 380773), (865, 239909), (2201, 94285), (3379, 61415), (5363, 38695), (7739, 26815), (11005, 18857), (12283, 16895)]