1721617020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{180463}}^1$

素因数の和:180531

約数の個数: 72

約数和(自身を含む): 5320800576

約数和(自身を除く): 3599183556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 3180, 4770, 9540, 180463, 360926, 541389, 721852, 902315, 1082778, 1624167, 1804630, 2165556, 2706945, 3248334, 3609260, 5413890, 6496668, 8120835, 9564539, 10827780, 16241670, 19129078, 28693617, 32483340, 38258156, 47822695, 57387234, 86080851, 95645390, 114774468, 143468085, 172161702, 191290780, 286936170, 344323404, 430404255, 573872340, 860808510, 1721617020]

約数ペア:

[(1, 1721617020), (2, 860808510), (3, 573872340), (4, 430404255), (5, 344323404), (6, 286936170), (9, 191290780), (10, 172161702), (12, 143468085), (15, 114774468), (18, 95645390), (20, 86080851), (30, 57387234), (36, 47822695), (45, 38258156), (53, 32483340), (60, 28693617), (90, 19129078), (106, 16241670), (159, 10827780), (180, 9564539), (212, 8120835), (265, 6496668), (318, 5413890), (477, 3609260), (530, 3248334), (636, 2706945), (795, 2165556), (954, 1804630), (1060, 1624167), (1590, 1082778), (1908, 902315), (2385, 721852), (3180, 541389), (4770, 360926), (9540, 180463)]