19720380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3191}}^1$

素因数の和:3306

約数の個数: 48

約数和(自身を含む): 55770624

約数和(自身を除く): 36050244

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 103, 206, 309, 412, 515, 618, 1030, 1236, 1545, 2060, 3090, 3191, 6180, 6382, 9573, 12764, 15955, 19146, 31910, 38292, 47865, 63820, 95730, 191460, 328673, 657346, 986019, 1314692, 1643365, 1972038, 3286730, 3944076, 4930095, 6573460, 9860190, 19720380]

約数ペア:

[(1, 19720380), (2, 9860190), (3, 6573460), (4, 4930095), (5, 3944076), (6, 3286730), (10, 1972038), (12, 1643365), (15, 1314692), (20, 986019), (30, 657346), (60, 328673), (103, 191460), (206, 95730), (309, 63820), (412, 47865), (515, 38292), (618, 31910), (1030, 19146), (1236, 15955), (1545, 12764), (2060, 9573), (3090, 6382), (3191, 6180)]