20723742016

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1002503}}^1$

素因数の和:1002551

約数の個数: 56

約数和(自身を含む): 45834482880

約数和(自身を除く): 25110740864

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1088, 1216, 1292, 2584, 5168, 10336, 20672, 1002503, 2005006, 4010012, 8020024, 16040048, 17042551, 19047557, 32080096, 34085102, 38095114, 64160192, 68170204, 76190228, 136340408, 152380456, 272680816, 304760912, 323808469, 545361632, 609521824, 647616938, 1090723264, 1219043648, 1295233876, 2590467752, 5180935504, 10361871008, 20723742016]

約数ペア:

[(1, 20723742016), (2, 10361871008), (4, 5180935504), (8, 2590467752), (16, 1295233876), (17, 1219043648), (19, 1090723264), (32, 647616938), (34, 609521824), (38, 545361632), (64, 323808469), (68, 304760912), (76, 272680816), (136, 152380456), (152, 136340408), (272, 76190228), (304, 68170204), (323, 64160192), (544, 38095114), (608, 34085102), (646, 32080096), (1088, 19047557), (1216, 17042551), (1292, 16040048), (2584, 8020024), (5168, 4010012), (10336, 2005006), (20672, 1002503)]