638441776

素因数分解:

$2^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:403

約数の個数: 120

約数和(自身を含む): 1505201280

約数和(自身を除く): 866759504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 49, 56, 62, 98, 109, 112, 124, 196, 217, 218, 241, 248, 392, 434, 436, 482, 496, 763, 784, 868, 872, 964, 1519, 1526, 1687, 1736, 1744, 1928, 3038, 3052, 3374, 3379, 3472, 3856, 5341, 6076, 6104, 6748, 6758, 7471, 10682, 11809, 12152, 12208, 13496, 13516, 14942, 21364, 23618, 23653, 24304, 26269, 26992, 27032, 29884, 42728, 47236, 47306, 52297, 52538, 54064, 59768, 85456, 94472, 94612, 104594, 105076, 119536, 165571, 183883, 188944, 189224, 209188, 210152, 331142, 366079, 367766, 378448, 418376, 420304, 662284, 732158, 735532, 814339, 836752, 1287181, 1324568, 1464316, 1471064, 1628678, 2574362, 2649136, 2928632, 2942128, 3257356, 5148724, 5700373, 5857264, 6514712, 10297448, 11400746, 13029424, 20594896, 22801492, 39902611, 45602984, 79805222, 91205968, 159610444, 319220888, 638441776]

約数ペア:

[(1, 638441776), (2, 319220888), (4, 159610444), (7, 91205968), (8, 79805222), (14, 45602984), (16, 39902611), (28, 22801492), (31, 20594896), (49, 13029424), (56, 11400746), (62, 10297448), (98, 6514712), (109, 5857264), (112, 5700373), (124, 5148724), (196, 3257356), (217, 2942128), (218, 2928632), (241, 2649136), (248, 2574362), (392, 1628678), (434, 1471064), (436, 1464316), (482, 1324568), (496, 1287181), (763, 836752), (784, 814339), (868, 735532), (872, 732158), (964, 662284), (1519, 420304), (1526, 418376), (1687, 378448), (1736, 367766), (1744, 366079), (1928, 331142), (3038, 210152), (3052, 209188), (3374, 189224), (3379, 188944), (3472, 183883), (3856, 165571), (5341, 119536), (6076, 105076), (6104, 104594), (6748, 94612), (6758, 94472), (7471, 85456), (10682, 59768), (11809, 54064), (12152, 52538), (12208, 52297), (13496, 47306), (13516, 47236), (14942, 42728), (21364, 29884), (23618, 27032), (23653, 26992), (24304, 26269)]