28289268

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 87360000

約数和(自身を除く): 59070732

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 49, 58, 63, 79, 84, 87, 98, 116, 126, 147, 158, 174, 196, 203, 237, 252, 261, 294, 316, 343, 348, 406, 441, 474, 522, 553, 588, 609, 686, 711, 812, 882, 948, 1029, 1044, 1106, 1218, 1372, 1421, 1422, 1659, 1764, 1827, 2058, 2212, 2291, 2436, 2842, 2844, 3087, 3318, 3654, 3871, 4116, 4263, 4582, 4977, 5684, 6174, 6636, 6873, 7308, 7742, 8526, 9164, 9947, 9954, 11613, 12348, 12789, 13746, 15484, 16037, 17052, 19894, 19908, 20619, 23226, 25578, 27097, 27492, 29841, 32074, 34839, 39788, 41238, 46452, 48111, 51156, 54194, 59682, 64148, 69678, 81291, 82476, 89523, 96222, 108388, 112259, 119364, 139356, 144333, 162582, 179046, 192444, 224518, 243873, 288666, 325164, 336777, 358092, 449036, 487746, 577332, 673554, 785813, 975492, 1010331, 1347108, 1571626, 2020662, 2357439, 3143252, 4041324, 4714878, 7072317, 9429756, 14144634, 28289268]

約数ペア:

[(1, 28289268), (2, 14144634), (3, 9429756), (4, 7072317), (6, 4714878), (7, 4041324), (9, 3143252), (12, 2357439), (14, 2020662), (18, 1571626), (21, 1347108), (28, 1010331), (29, 975492), (36, 785813), (42, 673554), (49, 577332), (58, 487746), (63, 449036), (79, 358092), (84, 336777), (87, 325164), (98, 288666), (116, 243873), (126, 224518), (147, 192444), (158, 179046), (174, 162582), (196, 144333), (203, 139356), (237, 119364), (252, 112259), (261, 108388), (294, 96222), (316, 89523), (343, 82476), (348, 81291), (406, 69678), (441, 64148), (474, 59682), (522, 54194), (553, 51156), (588, 48111), (609, 46452), (686, 41238), (711, 39788), (812, 34839), (882, 32074), (948, 29841), (1029, 27492), (1044, 27097), (1106, 25578), (1218, 23226), (1372, 20619), (1421, 19908), (1422, 19894), (1659, 17052), (1764, 16037), (1827, 15484), (2058, 13746), (2212, 12789), (2291, 12348), (2436, 11613), (2842, 9954), (2844, 9947), (3087, 9164), (3318, 8526), (3654, 7742), (3871, 7308), (4116, 6873), (4263, 6636), (4582, 6174), (4977, 5684)]