8141840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:125

約数の個数: 120

約数和(自身を含む): 23069952

約数和(自身を除く): 14928112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 67, 70, 80, 98, 112, 124, 134, 140, 155, 196, 217, 245, 248, 268, 280, 310, 335, 392, 434, 469, 490, 496, 536, 560, 620, 670, 784, 868, 938, 980, 1072, 1085, 1240, 1340, 1519, 1736, 1876, 1960, 2077, 2170, 2345, 2480, 2680, 3038, 3283, 3472, 3752, 3920, 4154, 4340, 4690, 5360, 6076, 6566, 7504, 7595, 8308, 8680, 9380, 10385, 12152, 13132, 14539, 15190, 16415, 16616, 17360, 18760, 20770, 24304, 26264, 29078, 30380, 32830, 33232, 37520, 41540, 52528, 58156, 60760, 65660, 72695, 83080, 101773, 116312, 121520, 131320, 145390, 166160, 203546, 232624, 262640, 290780, 407092, 508865, 581560, 814184, 1017730, 1163120, 1628368, 2035460, 4070920, 8141840]

約数ペア:

[(1, 8141840), (2, 4070920), (4, 2035460), (5, 1628368), (7, 1163120), (8, 1017730), (10, 814184), (14, 581560), (16, 508865), (20, 407092), (28, 290780), (31, 262640), (35, 232624), (40, 203546), (49, 166160), (56, 145390), (62, 131320), (67, 121520), (70, 116312), (80, 101773), (98, 83080), (112, 72695), (124, 65660), (134, 60760), (140, 58156), (155, 52528), (196, 41540), (217, 37520), (245, 33232), (248, 32830), (268, 30380), (280, 29078), (310, 26264), (335, 24304), (392, 20770), (434, 18760), (469, 17360), (490, 16616), (496, 16415), (536, 15190), (560, 14539), (620, 13132), (670, 12152), (784, 10385), (868, 9380), (938, 8680), (980, 8308), (1072, 7595), (1085, 7504), (1240, 6566), (1340, 6076), (1519, 5360), (1736, 4690), (1876, 4340), (1960, 4154), (2077, 3920), (2170, 3752), (2345, 3472), (2480, 3283), (2680, 3038)]