251017984

素因数分解:

$2^8\times 7^2\times {\mathrm{20011}}^1$

素因数の和:20041

約数の個数: 54

約数和(自身を含む): 582889524

約数和(自身を除く): 331871540

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 784, 896, 1568, 1792, 3136, 6272, 12544, 20011, 40022, 80044, 140077, 160088, 280154, 320176, 560308, 640352, 980539, 1120616, 1280704, 1961078, 2241232, 2561408, 3922156, 4482464, 5122816, 7844312, 8964928, 15688624, 17929856, 31377248, 35859712, 62754496, 125508992, 251017984]

約数ペア:

[(1, 251017984), (2, 125508992), (4, 62754496), (7, 35859712), (8, 31377248), (14, 17929856), (16, 15688624), (28, 8964928), (32, 7844312), (49, 5122816), (56, 4482464), (64, 3922156), (98, 2561408), (112, 2241232), (128, 1961078), (196, 1280704), (224, 1120616), (256, 980539), (392, 640352), (448, 560308), (784, 320176), (896, 280154), (1568, 160088), (1792, 140077), (3136, 80044), (6272, 40022), (12544, 20011)]