25641868

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 54503680

約数和(自身を除く): 28861812

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 157, 266, 307, 314, 532, 614, 628, 1099, 1228, 2149, 2198, 2983, 4298, 4396, 5833, 5966, 8596, 11666, 11932, 20881, 23332, 40831, 41762, 48199, 81662, 83524, 96398, 163324, 192796, 337393, 674786, 915781, 1349572, 1831562, 3663124, 6410467, 12820934, 25641868]

約数ペア:

[(1, 25641868), (2, 12820934), (4, 6410467), (7, 3663124), (14, 1831562), (19, 1349572), (28, 915781), (38, 674786), (76, 337393), (133, 192796), (157, 163324), (266, 96398), (307, 83524), (314, 81662), (532, 48199), (614, 41762), (628, 40831), (1099, 23332), (1228, 20881), (2149, 11932), (2198, 11666), (2983, 8596), (4298, 5966), (4396, 5833)]