25157408

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 26734432

約数列:

[1, 2, 4, 8, 16, 32, 43, 47, 86, 94, 172, 188, 344, 376, 389, 688, 752, 778, 1376, 1504, 1556, 2021, 3112, 4042, 6224, 8084, 12448, 16168, 16727, 18283, 32336, 33454, 36566, 64672, 66908, 73132, 133816, 146264, 267632, 292528, 535264, 585056, 786169, 1572338, 3144676, 6289352, 12578704, 25157408]

約数ペア:

[(1, 25157408), (2, 12578704), (4, 6289352), (8, 3144676), (16, 1572338), (32, 786169), (43, 585056), (47, 535264), (86, 292528), (94, 267632), (172, 146264), (188, 133816), (344, 73132), (376, 66908), (389, 64672), (688, 36566), (752, 33454), (778, 32336), (1376, 18283), (1504, 16727), (1556, 16168), (2021, 12448), (3112, 8084), (4042, 6224)]