28705404

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:395

約数の個数: 96

約数和(自身を含む): 83593216

約数和(自身を除く): 54887812

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 97, 156, 182, 194, 271, 273, 291, 364, 388, 542, 546, 582, 679, 813, 1084, 1092, 1164, 1261, 1358, 1626, 1897, 2037, 2522, 2716, 3252, 3523, 3783, 3794, 4074, 5044, 5691, 7046, 7566, 7588, 8148, 8827, 10569, 11382, 14092, 15132, 17654, 21138, 22764, 24661, 26287, 26481, 35308, 42276, 49322, 52574, 52962, 73983, 78861, 98644, 105148, 105924, 147966, 157722, 184009, 295932, 315444, 341731, 368018, 552027, 683462, 736036, 1025193, 1104054, 1366924, 2050386, 2208108, 2392117, 4100772, 4784234, 7176351, 9568468, 14352702, 28705404]

約数ペア:

[(1, 28705404), (2, 14352702), (3, 9568468), (4, 7176351), (6, 4784234), (7, 4100772), (12, 2392117), (13, 2208108), (14, 2050386), (21, 1366924), (26, 1104054), (28, 1025193), (39, 736036), (42, 683462), (52, 552027), (78, 368018), (84, 341731), (91, 315444), (97, 295932), (156, 184009), (182, 157722), (194, 147966), (271, 105924), (273, 105148), (291, 98644), (364, 78861), (388, 73983), (542, 52962), (546, 52574), (582, 49322), (679, 42276), (813, 35308), (1084, 26481), (1092, 26287), (1164, 24661), (1261, 22764), (1358, 21138), (1626, 17654), (1897, 15132), (2037, 14092), (2522, 11382), (2716, 10569), (3252, 8827), (3523, 8148), (3783, 7588), (3794, 7566), (4074, 7046), (5044, 5691)]