28279692

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:397

約数の個数: 120

約数和(自身を含む): 87030944

約数和(自身を除く): 58751252

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 37, 42, 54, 63, 74, 81, 84, 108, 111, 126, 148, 162, 189, 222, 252, 259, 324, 333, 337, 378, 444, 518, 567, 666, 674, 756, 777, 999, 1011, 1036, 1134, 1332, 1348, 1554, 1998, 2022, 2268, 2331, 2359, 2997, 3033, 3108, 3996, 4044, 4662, 4718, 5994, 6066, 6993, 7077, 9099, 9324, 9436, 11988, 12132, 12469, 13986, 14154, 18198, 20979, 21231, 24938, 27297, 27972, 28308, 36396, 37407, 41958, 42462, 49876, 54594, 63693, 74814, 83916, 84924, 87283, 109188, 112221, 127386, 149628, 174566, 191079, 224442, 254772, 261849, 336663, 349132, 382158, 448884, 523698, 673326, 764316, 785547, 1009989, 1047396, 1346652, 1571094, 2019978, 2356641, 3142188, 4039956, 4713282, 7069923, 9426564, 14139846, 28279692]

約数ペア:

[(1, 28279692), (2, 14139846), (3, 9426564), (4, 7069923), (6, 4713282), (7, 4039956), (9, 3142188), (12, 2356641), (14, 2019978), (18, 1571094), (21, 1346652), (27, 1047396), (28, 1009989), (36, 785547), (37, 764316), (42, 673326), (54, 523698), (63, 448884), (74, 382158), (81, 349132), (84, 336663), (108, 261849), (111, 254772), (126, 224442), (148, 191079), (162, 174566), (189, 149628), (222, 127386), (252, 112221), (259, 109188), (324, 87283), (333, 84924), (337, 83916), (378, 74814), (444, 63693), (518, 54594), (567, 49876), (666, 42462), (674, 41958), (756, 37407), (777, 36396), (999, 28308), (1011, 27972), (1036, 27297), (1134, 24938), (1332, 21231), (1348, 20979), (1554, 18198), (1998, 14154), (2022, 13986), (2268, 12469), (2331, 12132), (2359, 11988), (2997, 9436), (3033, 9324), (3108, 9099), (3996, 7077), (4044, 6993), (4662, 6066), (4718, 5994)]