201755905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{449}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 270950400

約数和(自身を除く): 69194495

約数列:

[1, 5, 13, 31, 65, 155, 223, 403, 449, 1115, 2015, 2245, 2899, 5837, 6913, 13919, 14495, 29185, 34565, 69595, 89869, 100127, 180947, 449345, 500635, 904735, 1301651, 3103937, 6508255, 15519685, 40351181, 201755905]

約数ペア:

[(1, 201755905), (5, 40351181), (13, 15519685), (31, 6508255), (65, 3103937), (155, 1301651), (223, 904735), (403, 500635), (449, 449345), (1115, 180947), (2015, 100127), (2245, 89869), (2899, 69595), (5837, 34565), (6913, 29185), (13919, 14495)]