256845064

素因数分解:

$2^3\times 7^2\times {\mathrm{643}}^1\times {\mathrm{1019}}^1$

素因数の和:1682

約数の個数: 48

約数和(自身を含む): 561632400

約数和(自身を除く): 304787336

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 643, 1019, 1286, 2038, 2572, 4076, 4501, 5144, 7133, 8152, 9002, 14266, 18004, 28532, 31507, 36008, 49931, 57064, 63014, 99862, 126028, 199724, 252056, 399448, 655217, 1310434, 2620868, 4586519, 5241736, 9173038, 18346076, 32105633, 36692152, 64211266, 128422532, 256845064]

約数ペア:

[(1, 256845064), (2, 128422532), (4, 64211266), (7, 36692152), (8, 32105633), (14, 18346076), (28, 9173038), (49, 5241736), (56, 4586519), (98, 2620868), (196, 1310434), (392, 655217), (643, 399448), (1019, 252056), (1286, 199724), (2038, 126028), (2572, 99862), (4076, 63014), (4501, 57064), (5144, 49931), (7133, 36008), (8152, 31507), (9002, 28532), (14266, 18004)]