20163940748

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{351803}}^1$

素因数の和:351926

約数の個数: 48

約数和(自身を含む): 42554211840

約数和(自身を除く): 22390271092

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 89, 92, 161, 178, 322, 356, 623, 644, 1246, 2047, 2492, 4094, 8188, 14329, 28658, 57316, 351803, 703606, 1407212, 2462621, 4925242, 8091469, 9850484, 16182938, 31310467, 32365876, 56640283, 62620934, 113280566, 125241868, 219173269, 226561132, 438346538, 720140741, 876693076, 1440281482, 2880562964, 5040985187, 10081970374, 20163940748]

約数ペア:

[(1, 20163940748), (2, 10081970374), (4, 5040985187), (7, 2880562964), (14, 1440281482), (23, 876693076), (28, 720140741), (46, 438346538), (89, 226561132), (92, 219173269), (161, 125241868), (178, 113280566), (322, 62620934), (356, 56640283), (623, 32365876), (644, 31310467), (1246, 16182938), (2047, 9850484), (2492, 8091469), (4094, 4925242), (8188, 2462621), (14329, 1407212), (28658, 703606), (57316, 351803)]