18609920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:126

約数の個数: 144

約数和(自身を含む): 53372928

約数和(自身を除く): 34763008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 67, 70, 80, 112, 124, 128, 134, 140, 155, 160, 217, 224, 248, 256, 268, 280, 310, 320, 335, 434, 448, 469, 496, 536, 560, 620, 640, 670, 868, 896, 938, 992, 1072, 1085, 1120, 1240, 1280, 1340, 1736, 1792, 1876, 1984, 2077, 2144, 2170, 2240, 2345, 2480, 2680, 3472, 3752, 3968, 4154, 4288, 4340, 4480, 4690, 4960, 5360, 6944, 7504, 7936, 8308, 8576, 8680, 8960, 9380, 9920, 10385, 10720, 13888, 14539, 15008, 16616, 17152, 17360, 18760, 19840, 20770, 21440, 27776, 29078, 30016, 33232, 34720, 37520, 39680, 41540, 42880, 55552, 58156, 60032, 66464, 69440, 72695, 75040, 83080, 85760, 116312, 120064, 132928, 138880, 145390, 150080, 166160, 232624, 265856, 277760, 290780, 300160, 332320, 465248, 531712, 581560, 600320, 664640, 930496, 1163120, 1329280, 1860992, 2326240, 2658560, 3721984, 4652480, 9304960, 18609920]

約数ペア:

[(1, 18609920), (2, 9304960), (4, 4652480), (5, 3721984), (7, 2658560), (8, 2326240), (10, 1860992), (14, 1329280), (16, 1163120), (20, 930496), (28, 664640), (31, 600320), (32, 581560), (35, 531712), (40, 465248), (56, 332320), (62, 300160), (64, 290780), (67, 277760), (70, 265856), (80, 232624), (112, 166160), (124, 150080), (128, 145390), (134, 138880), (140, 132928), (155, 120064), (160, 116312), (217, 85760), (224, 83080), (248, 75040), (256, 72695), (268, 69440), (280, 66464), (310, 60032), (320, 58156), (335, 55552), (434, 42880), (448, 41540), (469, 39680), (496, 37520), (536, 34720), (560, 33232), (620, 30016), (640, 29078), (670, 27776), (868, 21440), (896, 20770), (938, 19840), (992, 18760), (1072, 17360), (1085, 17152), (1120, 16616), (1240, 15008), (1280, 14539), (1340, 13888), (1736, 10720), (1792, 10385), (1876, 9920), (1984, 9380), (2077, 8960), (2144, 8680), (2170, 8576), (2240, 8308), (2345, 7936), (2480, 7504), (2680, 6944), (3472, 5360), (3752, 4960), (3968, 4690), (4154, 4480), (4288, 4340)]