81143415

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 144555840

約数和(自身を除く): 63412425

約数列:

[1, 3, 5, 9, 15, 45, 71, 109, 213, 233, 327, 355, 545, 639, 699, 981, 1065, 1165, 1635, 2097, 3195, 3495, 4905, 7739, 10485, 16543, 23217, 25397, 38695, 49629, 69651, 76191, 82715, 116085, 126985, 148887, 228573, 248145, 348255, 380955, 744435, 1142865, 1803187, 5409561, 9015935, 16228683, 27047805, 81143415]

約数ペア:

[(1, 81143415), (3, 27047805), (5, 16228683), (9, 9015935), (15, 5409561), (45, 1803187), (71, 1142865), (109, 744435), (213, 380955), (233, 348255), (327, 248145), (355, 228573), (545, 148887), (639, 126985), (699, 116085), (981, 82715), (1065, 76191), (1165, 69651), (1635, 49629), (2097, 38695), (3195, 25397), (3495, 23217), (4905, 16543), (7739, 10485)]