209009920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{23327}}^1$

素因数の和:23355

約数の個数: 72

約数和(自身を含む): 572189184

約数和(自身を除く): 363179264

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, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 23327, 46654, 93308, 116635, 163289, 186616, 233270, 326578, 373232, 466540, 653156, 746464, 816445, 933080, 1306312, 1492928, 1632890, 1866160, 2612624, 2985856, 3265780, 3732320, 5225248, 5971712, 6531560, 7464640, 10450496, 13063120, 14929280, 20900992, 26126240, 29858560, 41801984, 52252480, 104504960, 209009920]

約数ペア:

[(1, 209009920), (2, 104504960), (4, 52252480), (5, 41801984), (7, 29858560), (8, 26126240), (10, 20900992), (14, 14929280), (16, 13063120), (20, 10450496), (28, 7464640), (32, 6531560), (35, 5971712), (40, 5225248), (56, 3732320), (64, 3265780), (70, 2985856), (80, 2612624), (112, 1866160), (128, 1632890), (140, 1492928), (160, 1306312), (224, 933080), (256, 816445), (280, 746464), (320, 653156), (448, 466540), (560, 373232), (640, 326578), (896, 233270), (1120, 186616), (1280, 163289), (1792, 116635), (2240, 93308), (4480, 46654), (8960, 23327)]