638396864

素因数分解:

$2^6\times 7^1\times {\mathrm{47}}^1\times {\mathrm{30319}}^1$

素因数の和:30385

約数の個数: 56

約数和(自身を含む): 1478645760

約数和(自身を除く): 840248896

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 188, 224, 329, 376, 448, 658, 752, 1316, 1504, 2632, 3008, 5264, 10528, 21056, 30319, 60638, 121276, 212233, 242552, 424466, 485104, 848932, 970208, 1424993, 1697864, 1940416, 2849986, 3395728, 5699972, 6791456, 9974951, 11399944, 13582912, 19949902, 22799888, 39899804, 45599776, 79799608, 91199552, 159599216, 319198432, 638396864]

約数ペア:

[(1, 638396864), (2, 319198432), (4, 159599216), (7, 91199552), (8, 79799608), (14, 45599776), (16, 39899804), (28, 22799888), (32, 19949902), (47, 13582912), (56, 11399944), (64, 9974951), (94, 6791456), (112, 5699972), (188, 3395728), (224, 2849986), (329, 1940416), (376, 1697864), (448, 1424993), (658, 970208), (752, 848932), (1316, 485104), (1504, 424466), (2632, 242552), (3008, 212233), (5264, 121276), (10528, 60638), (21056, 30319)]