178990868

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{661}}^1$

素因数の和:1200

約数の個数: 48

約数和(自身を含む): 378134400

約数和(自身を除く): 199143532

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 509, 532, 661, 1018, 1322, 2036, 2644, 3563, 4627, 7126, 9254, 9671, 12559, 14252, 18508, 19342, 25118, 38684, 50236, 67697, 87913, 135394, 175826, 270788, 336449, 351652, 672898, 1345796, 2355143, 4710286, 6392531, 9420572, 12785062, 25570124, 44747717, 89495434, 178990868]

約数ペア:

[(1, 178990868), (2, 89495434), (4, 44747717), (7, 25570124), (14, 12785062), (19, 9420572), (28, 6392531), (38, 4710286), (76, 2355143), (133, 1345796), (266, 672898), (509, 351652), (532, 336449), (661, 270788), (1018, 175826), (1322, 135394), (2036, 87913), (2644, 67697), (3563, 50236), (4627, 38684), (7126, 25118), (9254, 19342), (9671, 18508), (12559, 14252)]