28001295

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:131

約数の個数: 120

約数和(自身を含む): 62569584

約数和(自身を除く): 34568289

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 27, 35, 45, 49, 51, 63, 81, 83, 85, 105, 119, 135, 147, 153, 189, 245, 249, 255, 315, 357, 405, 415, 441, 459, 567, 581, 595, 735, 747, 765, 833, 945, 1071, 1245, 1323, 1377, 1411, 1743, 1785, 2205, 2241, 2295, 2499, 2835, 2905, 3213, 3735, 3969, 4067, 4165, 4233, 5229, 5355, 6615, 6723, 6885, 7055, 7497, 8715, 9639, 9877, 11205, 12201, 12495, 12699, 15687, 16065, 19845, 20335, 21165, 22491, 26145, 29631, 33615, 36603, 37485, 38097, 47061, 48195, 49385, 61005, 63495, 67473, 69139, 78435, 88893, 109809, 112455, 114291, 148155, 183015, 190485, 207417, 235305, 266679, 329427, 337365, 345695, 444465, 549045, 571455, 622251, 800037, 1037085, 1333395, 1647135, 1866753, 3111255, 4000185, 5600259, 9333765, 28001295]

約数ペア:

[(1, 28001295), (3, 9333765), (5, 5600259), (7, 4000185), (9, 3111255), (15, 1866753), (17, 1647135), (21, 1333395), (27, 1037085), (35, 800037), (45, 622251), (49, 571455), (51, 549045), (63, 444465), (81, 345695), (83, 337365), (85, 329427), (105, 266679), (119, 235305), (135, 207417), (147, 190485), (153, 183015), (189, 148155), (245, 114291), (249, 112455), (255, 109809), (315, 88893), (357, 78435), (405, 69139), (415, 67473), (441, 63495), (459, 61005), (567, 49385), (581, 48195), (595, 47061), (735, 38097), (747, 37485), (765, 36603), (833, 33615), (945, 29631), (1071, 26145), (1245, 22491), (1323, 21165), (1377, 20335), (1411, 19845), (1743, 16065), (1785, 15687), (2205, 12699), (2241, 12495), (2295, 12201), (2499, 11205), (2835, 9877), (2905, 9639), (3213, 8715), (3735, 7497), (3969, 7055), (4067, 6885), (4165, 6723), (4233, 6615), (5229, 5355)]