28714340

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 62270208

約数和(自身を除く): 33555868

約数列:

[1, 2, 4, 5, 10, 20, 53, 103, 106, 206, 212, 263, 265, 412, 515, 526, 530, 1030, 1052, 1060, 1315, 2060, 2630, 5260, 5459, 10918, 13939, 21836, 27089, 27295, 27878, 54178, 54590, 55756, 69695, 108356, 109180, 135445, 139390, 270890, 278780, 541780, 1435717, 2871434, 5742868, 7178585, 14357170, 28714340]

約数ペア:

[(1, 28714340), (2, 14357170), (4, 7178585), (5, 5742868), (10, 2871434), (20, 1435717), (53, 541780), (103, 278780), (106, 270890), (206, 139390), (212, 135445), (263, 109180), (265, 108356), (412, 69695), (515, 55756), (526, 54590), (530, 54178), (1030, 27878), (1052, 27295), (1060, 27089), (1315, 21836), (2060, 13939), (2630, 10918), (5260, 5459)]