20005974016

素因数分解:

$2^{12}\times 7^2\times {\mathrm{99679}}^1$

素因数の和:99717

約数の個数: 78

約数和(自身を含む): 46539296160

約数和(自身を除く): 26533322144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 512, 784, 896, 1024, 1568, 1792, 2048, 3136, 3584, 4096, 6272, 7168, 12544, 14336, 25088, 28672, 50176, 99679, 100352, 199358, 200704, 398716, 697753, 797432, 1395506, 1594864, 2791012, 3189728, 4884271, 5582024, 6379456, 9768542, 11164048, 12758912, 19537084, 22328096, 25517824, 39074168, 44656192, 51035648, 78148336, 89312384, 102071296, 156296672, 178624768, 204142592, 312593344, 357249536, 408285184, 625186688, 714499072, 1250373376, 1428998144, 2500746752, 2857996288, 5001493504, 10002987008, 20005974016]

約数ペア:

[(1, 20005974016), (2, 10002987008), (4, 5001493504), (7, 2857996288), (8, 2500746752), (14, 1428998144), (16, 1250373376), (28, 714499072), (32, 625186688), (49, 408285184), (56, 357249536), (64, 312593344), (98, 204142592), (112, 178624768), (128, 156296672), (196, 102071296), (224, 89312384), (256, 78148336), (392, 51035648), (448, 44656192), (512, 39074168), (784, 25517824), (896, 22328096), (1024, 19537084), (1568, 12758912), (1792, 11164048), (2048, 9768542), (3136, 6379456), (3584, 5582024), (4096, 4884271), (6272, 3189728), (7168, 2791012), (12544, 1594864), (14336, 1395506), (25088, 797432), (28672, 697753), (50176, 398716), (99679, 200704), (100352, 199358)]