285403391

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 375379200

約数和(自身を除く): 89975809

約数列:

[1, 7, 13, 31, 49, 91, 97, 149, 217, 403, 637, 679, 1043, 1261, 1519, 1937, 2821, 3007, 4619, 4753, 7301, 8827, 13559, 14453, 19747, 21049, 32333, 39091, 60047, 61789, 94913, 101171, 147343, 187889, 226331, 273637, 420329, 448043, 708197, 1315223, 1915459, 2942303, 3136301, 5824559, 9206561, 21954107, 40771913, 285403391]

約数ペア:

[(1, 285403391), (7, 40771913), (13, 21954107), (31, 9206561), (49, 5824559), (91, 3136301), (97, 2942303), (149, 1915459), (217, 1315223), (403, 708197), (637, 448043), (679, 420329), (1043, 273637), (1261, 226331), (1519, 187889), (1937, 147343), (2821, 101171), (3007, 94913), (4619, 61789), (4753, 60047), (7301, 39091), (8827, 32333), (13559, 21049), (14453, 19747)]