25278080

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 61102080

約数和(自身を除く): 35824000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 311, 320, 508, 622, 635, 640, 1016, 1244, 1270, 1555, 2032, 2488, 2540, 3110, 4064, 4976, 5080, 6220, 8128, 9952, 10160, 12440, 16256, 19904, 20320, 24880, 39497, 39808, 40640, 49760, 78994, 81280, 99520, 157988, 197485, 199040, 315976, 394970, 631952, 789940, 1263904, 1579880, 2527808, 3159760, 5055616, 6319520, 12639040, 25278080]

約数ペア:

[(1, 25278080), (2, 12639040), (4, 6319520), (5, 5055616), (8, 3159760), (10, 2527808), (16, 1579880), (20, 1263904), (32, 789940), (40, 631952), (64, 394970), (80, 315976), (127, 199040), (128, 197485), (160, 157988), (254, 99520), (311, 81280), (320, 78994), (508, 49760), (622, 40640), (635, 39808), (640, 39497), (1016, 24880), (1244, 20320), (1270, 19904), (1555, 16256), (2032, 12440), (2488, 10160), (2540, 9952), (3110, 8128), (4064, 6220), (4976, 5080)]