18618880

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{1039}}^1$

素因数の和:1069

約数の個数: 80

約数和(自身を含む): 51068160

約数和(自身を除く): 32449280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1039, 1120, 1280, 1792, 2078, 2240, 2560, 3584, 4156, 4480, 5195, 7273, 8312, 8960, 10390, 14546, 16624, 17920, 20780, 29092, 33248, 36365, 41560, 58184, 66496, 72730, 83120, 116368, 132992, 145460, 166240, 232736, 265984, 290920, 332480, 465472, 531968, 581840, 664960, 930944, 1163680, 1329920, 1861888, 2327360, 2659840, 3723776, 4654720, 9309440, 18618880]

約数ペア:

[(1, 18618880), (2, 9309440), (4, 4654720), (5, 3723776), (7, 2659840), (8, 2327360), (10, 1861888), (14, 1329920), (16, 1163680), (20, 930944), (28, 664960), (32, 581840), (35, 531968), (40, 465472), (56, 332480), (64, 290920), (70, 265984), (80, 232736), (112, 166240), (128, 145460), (140, 132992), (160, 116368), (224, 83120), (256, 72730), (280, 66496), (320, 58184), (448, 41560), (512, 36365), (560, 33248), (640, 29092), (896, 20780), (1039, 17920), (1120, 16624), (1280, 14546), (1792, 10390), (2078, 8960), (2240, 8312), (2560, 7273), (3584, 5195), (4156, 4480)]