129138128

素因数分解:

$2^4\times 7^3\times {\mathrm{23531}}^1$

素因数の和:23560

約数の個数: 40

約数和(自身を含む): 291796800

約数和(自身を除く): 162658672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 5488, 23531, 47062, 94124, 164717, 188248, 329434, 376496, 658868, 1153019, 1317736, 2306038, 2635472, 4612076, 8071133, 9224152, 16142266, 18448304, 32284532, 64569064, 129138128]

約数ペア:

[(1, 129138128), (2, 64569064), (4, 32284532), (7, 18448304), (8, 16142266), (14, 9224152), (16, 8071133), (28, 4612076), (49, 2635472), (56, 2306038), (98, 1317736), (112, 1153019), (196, 658868), (343, 376496), (392, 329434), (686, 188248), (784, 164717), (1372, 94124), (2744, 47062), (5488, 23531)]