79979120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1451}}^1$

素因数の和:1530

約数の個数: 80

約数和(自身を含む): 204174432

約数和(自身を除く): 124195312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 689, 848, 1040, 1060, 1378, 1451, 2120, 2756, 2902, 3445, 4240, 5512, 5804, 6890, 7255, 11024, 11608, 13780, 14510, 18863, 23216, 27560, 29020, 37726, 55120, 58040, 75452, 76903, 94315, 116080, 150904, 153806, 188630, 301808, 307612, 377260, 384515, 615224, 754520, 769030, 999739, 1230448, 1509040, 1538060, 1999478, 3076120, 3998956, 4998695, 6152240, 7997912, 9997390, 15995824, 19994780, 39989560, 79979120]

約数ペア:

[(1, 79979120), (2, 39989560), (4, 19994780), (5, 15995824), (8, 9997390), (10, 7997912), (13, 6152240), (16, 4998695), (20, 3998956), (26, 3076120), (40, 1999478), (52, 1538060), (53, 1509040), (65, 1230448), (80, 999739), (104, 769030), (106, 754520), (130, 615224), (208, 384515), (212, 377260), (260, 307612), (265, 301808), (424, 188630), (520, 153806), (530, 150904), (689, 116080), (848, 94315), (1040, 76903), (1060, 75452), (1378, 58040), (1451, 55120), (2120, 37726), (2756, 29020), (2902, 27560), (3445, 23216), (4240, 18863), (5512, 14510), (5804, 13780), (6890, 11608), (7255, 11024)]