28496440

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:130

約数の個数: 128

約数和(自身を含む): 78336000

約数和(自身を除く): 49839560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 49, 56, 62, 67, 70, 98, 124, 134, 140, 155, 196, 217, 245, 248, 268, 280, 310, 335, 343, 392, 434, 469, 490, 536, 620, 670, 686, 868, 938, 980, 1085, 1240, 1340, 1372, 1519, 1715, 1736, 1876, 1960, 2077, 2170, 2345, 2680, 2744, 3038, 3283, 3430, 3752, 4154, 4340, 4690, 6076, 6566, 6860, 7595, 8308, 8680, 9380, 10385, 10633, 12152, 13132, 13720, 14539, 15190, 16415, 16616, 18760, 20770, 21266, 22981, 26264, 29078, 30380, 32830, 41540, 42532, 45962, 53165, 58156, 60760, 65660, 72695, 83080, 85064, 91924, 101773, 106330, 114905, 116312, 131320, 145390, 183848, 203546, 212660, 229810, 290780, 407092, 425320, 459620, 508865, 581560, 712411, 814184, 919240, 1017730, 1424822, 2035460, 2849644, 3562055, 4070920, 5699288, 7124110, 14248220, 28496440]

約数ペア:

[(1, 28496440), (2, 14248220), (4, 7124110), (5, 5699288), (7, 4070920), (8, 3562055), (10, 2849644), (14, 2035460), (20, 1424822), (28, 1017730), (31, 919240), (35, 814184), (40, 712411), (49, 581560), (56, 508865), (62, 459620), (67, 425320), (70, 407092), (98, 290780), (124, 229810), (134, 212660), (140, 203546), (155, 183848), (196, 145390), (217, 131320), (245, 116312), (248, 114905), (268, 106330), (280, 101773), (310, 91924), (335, 85064), (343, 83080), (392, 72695), (434, 65660), (469, 60760), (490, 58156), (536, 53165), (620, 45962), (670, 42532), (686, 41540), (868, 32830), (938, 30380), (980, 29078), (1085, 26264), (1240, 22981), (1340, 21266), (1372, 20770), (1519, 18760), (1715, 16616), (1736, 16415), (1876, 15190), (1960, 14539), (2077, 13720), (2170, 13132), (2345, 12152), (2680, 10633), (2744, 10385), (3038, 9380), (3283, 8680), (3430, 8308), (3752, 7595), (4154, 6860), (4340, 6566), (4690, 6076)]