20407773184

素因数分解:

$2^{11}\times {\mathrm{31}}^1\times {\mathrm{321443}}^1$

素因数の和:321496

約数の個数: 48

約数和(自身を含む): 42122021760

約数和(自身を除く): 21714248576

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1024, 1984, 2048, 3968, 7936, 15872, 31744, 63488, 321443, 642886, 1285772, 2571544, 5143088, 9964733, 10286176, 19929466, 20572352, 39858932, 41144704, 79717864, 82289408, 159435728, 164578816, 318871456, 329157632, 637742912, 658315264, 1275485824, 2550971648, 5101943296, 10203886592, 20407773184]

約数ペア:

[(1, 20407773184), (2, 10203886592), (4, 5101943296), (8, 2550971648), (16, 1275485824), (31, 658315264), (32, 637742912), (62, 329157632), (64, 318871456), (124, 164578816), (128, 159435728), (248, 82289408), (256, 79717864), (496, 41144704), (512, 39858932), (992, 20572352), (1024, 19929466), (1984, 10286176), (2048, 9964733), (3968, 5143088), (7936, 2571544), (15872, 1285772), (31744, 642886), (63488, 321443)]