19434040

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 45489600

約数和(自身を除く): 26055560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 89, 103, 106, 178, 206, 212, 265, 356, 412, 424, 445, 515, 530, 712, 824, 890, 1030, 1060, 1780, 2060, 2120, 3560, 4120, 4717, 5459, 9167, 9434, 10918, 18334, 18868, 21836, 23585, 27295, 36668, 37736, 43672, 45835, 47170, 54590, 73336, 91670, 94340, 109180, 183340, 188680, 218360, 366680, 485851, 971702, 1943404, 2429255, 3886808, 4858510, 9717020, 19434040]

約数ペア:

[(1, 19434040), (2, 9717020), (4, 4858510), (5, 3886808), (8, 2429255), (10, 1943404), (20, 971702), (40, 485851), (53, 366680), (89, 218360), (103, 188680), (106, 183340), (178, 109180), (206, 94340), (212, 91670), (265, 73336), (356, 54590), (412, 47170), (424, 45835), (445, 43672), (515, 37736), (530, 36668), (712, 27295), (824, 23585), (890, 21836), (1030, 18868), (1060, 18334), (1780, 10918), (2060, 9434), (2120, 9167), (3560, 5459), (4120, 4717)]