31181085

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:299

約数の個数: 64

約数和(自身を含む): 60614400

約数和(自身を除く): 29433315

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 109, 117, 135, 163, 195, 327, 351, 489, 545, 585, 815, 981, 1417, 1467, 1635, 1755, 2119, 2445, 2943, 4251, 4401, 4905, 6357, 7085, 7335, 10595, 12753, 14715, 17767, 19071, 21255, 22005, 31785, 38259, 53301, 57213, 63765, 88835, 95355, 159903, 191295, 230971, 266505, 286065, 479709, 692913, 799515, 1154855, 2078739, 2398545, 3464565, 6236217, 10393695, 31181085]

約数ペア:

[(1, 31181085), (3, 10393695), (5, 6236217), (9, 3464565), (13, 2398545), (15, 2078739), (27, 1154855), (39, 799515), (45, 692913), (65, 479709), (109, 286065), (117, 266505), (135, 230971), (163, 191295), (195, 159903), (327, 95355), (351, 88835), (489, 63765), (545, 57213), (585, 53301), (815, 38259), (981, 31785), (1417, 22005), (1467, 21255), (1635, 19071), (1755, 17767), (2119, 14715), (2445, 12753), (2943, 10595), (4251, 7335), (4401, 7085), (4905, 6357)]