11721780

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{443}}^1$

素因数の和:475

約数の個数: 144

約数和(自身を含む): 42517440

約数和(自身を除く): 30795660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 443, 490, 540, 588, 630, 735, 756, 882, 886, 945, 980, 1260, 1323, 1329, 1470, 1764, 1772, 1890, 2205, 2215, 2646, 2658, 2940, 3101, 3780, 3987, 4410, 4430, 5292, 5316, 6202, 6615, 6645, 7974, 8820, 8860, 9303, 11961, 12404, 13230, 13290, 15505, 15948, 18606, 19935, 21707, 23922, 26460, 26580, 27909, 31010, 37212, 39870, 43414, 46515, 47844, 55818, 59805, 62020, 65121, 79740, 83727, 86828, 93030, 108535, 111636, 119610, 130242, 139545, 167454, 186060, 195363, 217070, 239220, 260484, 279090, 325605, 334908, 390726, 418635, 434140, 558180, 586089, 651210, 781452, 837270, 976815, 1172178, 1302420, 1674540, 1953630, 2344356, 2930445, 3907260, 5860890, 11721780]

約数ペア:

[(1, 11721780), (2, 5860890), (3, 3907260), (4, 2930445), (5, 2344356), (6, 1953630), (7, 1674540), (9, 1302420), (10, 1172178), (12, 976815), (14, 837270), (15, 781452), (18, 651210), (20, 586089), (21, 558180), (27, 434140), (28, 418635), (30, 390726), (35, 334908), (36, 325605), (42, 279090), (45, 260484), (49, 239220), (54, 217070), (60, 195363), (63, 186060), (70, 167454), (84, 139545), (90, 130242), (98, 119610), (105, 111636), (108, 108535), (126, 93030), (135, 86828), (140, 83727), (147, 79740), (180, 65121), (189, 62020), (196, 59805), (210, 55818), (245, 47844), (252, 46515), (270, 43414), (294, 39870), (315, 37212), (378, 31010), (420, 27909), (441, 26580), (443, 26460), (490, 23922), (540, 21707), (588, 19935), (630, 18606), (735, 15948), (756, 15505), (882, 13290), (886, 13230), (945, 12404), (980, 11961), (1260, 9303), (1323, 8860), (1329, 8820), (1470, 7974), (1764, 6645), (1772, 6615), (1890, 6202), (2205, 5316), (2215, 5292), (2646, 4430), (2658, 4410), (2940, 3987), (3101, 3780)]