99973900

素因数分解:

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

素因数の和:1531

約数の個数: 72

約数和(自身を含む): 238203504

約数和(自身を除く): 138229604

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 130, 212, 260, 265, 325, 530, 650, 689, 1060, 1300, 1325, 1378, 1451, 2650, 2756, 2902, 3445, 5300, 5804, 6890, 7255, 13780, 14510, 17225, 18863, 29020, 34450, 36275, 37726, 68900, 72550, 75452, 76903, 94315, 145100, 153806, 188630, 307612, 377260, 384515, 471575, 769030, 943150, 999739, 1538060, 1886300, 1922575, 1999478, 3845150, 3998956, 4998695, 7690300, 9997390, 19994780, 24993475, 49986950, 99973900]

約数ペア:

[(1, 99973900), (2, 49986950), (4, 24993475), (5, 19994780), (10, 9997390), (13, 7690300), (20, 4998695), (25, 3998956), (26, 3845150), (50, 1999478), (52, 1922575), (53, 1886300), (65, 1538060), (100, 999739), (106, 943150), (130, 769030), (212, 471575), (260, 384515), (265, 377260), (325, 307612), (530, 188630), (650, 153806), (689, 145100), (1060, 94315), (1300, 76903), (1325, 75452), (1378, 72550), (1451, 68900), (2650, 37726), (2756, 36275), (2902, 34450), (3445, 29020), (5300, 18863), (5804, 17225), (6890, 14510), (7255, 13780)]