20647616

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:373

約数の個数: 56

約数和(自身を含む): 45232320

約数和(自身を除く): 24584704

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 139, 176, 211, 278, 352, 422, 556, 704, 844, 1112, 1529, 1688, 2224, 2321, 3058, 3376, 4448, 4642, 6116, 6752, 8896, 9284, 12232, 13504, 18568, 24464, 29329, 37136, 48928, 58658, 74272, 97856, 117316, 148544, 234632, 322619, 469264, 645238, 938528, 1290476, 1877056, 2580952, 5161904, 10323808, 20647616]

約数ペア:

[(1, 20647616), (2, 10323808), (4, 5161904), (8, 2580952), (11, 1877056), (16, 1290476), (22, 938528), (32, 645238), (44, 469264), (64, 322619), (88, 234632), (139, 148544), (176, 117316), (211, 97856), (278, 74272), (352, 58658), (422, 48928), (556, 37136), (704, 29329), (844, 24464), (1112, 18568), (1529, 13504), (1688, 12232), (2224, 9284), (2321, 8896), (3058, 6752), (3376, 6116), (4448, 4642)]