81697455

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 96

約数和(自身を含む): 169728000

約数和(自身を除く): 88030545

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 67, 79, 105, 147, 201, 237, 245, 315, 335, 343, 395, 441, 469, 553, 603, 711, 735, 1005, 1029, 1185, 1407, 1659, 1715, 2205, 2345, 2765, 3015, 3087, 3283, 3555, 3871, 4221, 4977, 5145, 5293, 7035, 8295, 9849, 11613, 15435, 15879, 16415, 19355, 21105, 22981, 24885, 26465, 27097, 29547, 34839, 37051, 47637, 49245, 58065, 68943, 79395, 81291, 111153, 114905, 135485, 147735, 174195, 185255, 206829, 238185, 243873, 259357, 333459, 344715, 406455, 555765, 778071, 1034145, 1219365, 1296785, 1667295, 1815499, 2334213, 3890355, 5446497, 9077495, 11671065, 16339491, 27232485, 81697455]

約数ペア:

[(1, 81697455), (3, 27232485), (5, 16339491), (7, 11671065), (9, 9077495), (15, 5446497), (21, 3890355), (35, 2334213), (45, 1815499), (49, 1667295), (63, 1296785), (67, 1219365), (79, 1034145), (105, 778071), (147, 555765), (201, 406455), (237, 344715), (245, 333459), (315, 259357), (335, 243873), (343, 238185), (395, 206829), (441, 185255), (469, 174195), (553, 147735), (603, 135485), (711, 114905), (735, 111153), (1005, 81291), (1029, 79395), (1185, 68943), (1407, 58065), (1659, 49245), (1715, 47637), (2205, 37051), (2345, 34839), (2765, 29547), (3015, 27097), (3087, 26465), (3283, 24885), (3555, 22981), (3871, 21105), (4221, 19355), (4977, 16415), (5145, 15879), (5293, 15435), (7035, 11613), (8295, 9849)]