638879248

素因数分解:

$2^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:421

約数の個数: 120

約数和(自身を含む): 1507236864

約数和(自身を除く): 868357616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 49, 56, 62, 97, 98, 112, 124, 194, 196, 217, 248, 271, 388, 392, 434, 496, 542, 679, 776, 784, 868, 1084, 1358, 1519, 1552, 1736, 1897, 2168, 2716, 3007, 3038, 3472, 3794, 4336, 4753, 5432, 6014, 6076, 7588, 8401, 9506, 10864, 12028, 12152, 13279, 15176, 16802, 19012, 21049, 24056, 24304, 26287, 26558, 30352, 33604, 38024, 42098, 48112, 52574, 53116, 58807, 67208, 76048, 84196, 105148, 106232, 117614, 134416, 147343, 168392, 184009, 210296, 212464, 235228, 294686, 336784, 368018, 411649, 420592, 470456, 589372, 736036, 814897, 823298, 940912, 1178744, 1288063, 1472072, 1629794, 1646596, 2357488, 2576126, 2944144, 3259588, 3293192, 5152252, 5704279, 6519176, 6586384, 10304504, 11408558, 13038352, 20609008, 22817116, 39929953, 45634232, 79859906, 91268464, 159719812, 319439624, 638879248]

約数ペア:

[(1, 638879248), (2, 319439624), (4, 159719812), (7, 91268464), (8, 79859906), (14, 45634232), (16, 39929953), (28, 22817116), (31, 20609008), (49, 13038352), (56, 11408558), (62, 10304504), (97, 6586384), (98, 6519176), (112, 5704279), (124, 5152252), (194, 3293192), (196, 3259588), (217, 2944144), (248, 2576126), (271, 2357488), (388, 1646596), (392, 1629794), (434, 1472072), (496, 1288063), (542, 1178744), (679, 940912), (776, 823298), (784, 814897), (868, 736036), (1084, 589372), (1358, 470456), (1519, 420592), (1552, 411649), (1736, 368018), (1897, 336784), (2168, 294686), (2716, 235228), (3007, 212464), (3038, 210296), (3472, 184009), (3794, 168392), (4336, 147343), (4753, 134416), (5432, 117614), (6014, 106232), (6076, 105148), (7588, 84196), (8401, 76048), (9506, 67208), (10864, 58807), (12028, 53116), (12152, 52574), (13279, 48112), (15176, 42098), (16802, 38024), (19012, 33604), (21049, 30352), (24056, 26558), (24304, 26287)]