20164456876

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1187}}^1\times {\mathrm{2089}}^1$

素因数の和:3406

約数の個数: 48

約数和(自身を含む): 37541750400

約数和(自身を除く): 17377293524

約数列:

[1, 2, 4, 19, 38, 76, 107, 214, 428, 1187, 2033, 2089, 2374, 4066, 4178, 4748, 8132, 8356, 22553, 39691, 45106, 79382, 90212, 127009, 158764, 223523, 254018, 447046, 508036, 894092, 2413171, 2479643, 4246937, 4826342, 4959286, 8493874, 9652684, 9918572, 16987748, 47113217, 94226434, 188452868, 265321801, 530643602, 1061287204, 5041114219, 10082228438, 20164456876]

約数ペア:

[(1, 20164456876), (2, 10082228438), (4, 5041114219), (19, 1061287204), (38, 530643602), (76, 265321801), (107, 188452868), (214, 94226434), (428, 47113217), (1187, 16987748), (2033, 9918572), (2089, 9652684), (2374, 8493874), (4066, 4959286), (4178, 4826342), (4748, 4246937), (8132, 2479643), (8356, 2413171), (22553, 894092), (39691, 508036), (45106, 447046), (79382, 254018), (90212, 223523), (127009, 158764)]