1871950145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^2\times {\mathrm{197}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 2551182480

約数和(自身を除く): 679232335

約数列:

[1, 5, 13, 29, 65, 71, 145, 197, 355, 377, 923, 985, 1885, 2059, 2561, 4615, 5041, 5713, 10295, 12805, 13987, 25205, 26767, 28565, 65533, 69935, 74269, 133835, 146189, 181831, 327665, 371345, 405623, 730945, 909155, 993077, 1900457, 2028115, 4965385, 5273099, 9502285, 12910001, 26365495, 28799233, 64550005, 143996165, 374390029, 1871950145]

約数ペア:

[(1, 1871950145), (5, 374390029), (13, 143996165), (29, 64550005), (65, 28799233), (71, 26365495), (145, 12910001), (197, 9502285), (355, 5273099), (377, 4965385), (923, 2028115), (985, 1900457), (1885, 993077), (2059, 909155), (2561, 730945), (4615, 405623), (5041, 371345), (5713, 327665), (10295, 181831), (12805, 146189), (13987, 133835), (25205, 74269), (26767, 69935), (28565, 65533)]