20261888

素因数分解:

$2^{10}\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 44

約数和(自身を含む): 41464032

約数和(自身を除く): 21202144

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 128, 188, 256, 376, 421, 512, 752, 842, 1024, 1504, 1684, 3008, 3368, 6016, 6736, 12032, 13472, 19787, 24064, 26944, 39574, 48128, 53888, 79148, 107776, 158296, 215552, 316592, 431104, 633184, 1266368, 2532736, 5065472, 10130944, 20261888]

約数ペア:

[(1, 20261888), (2, 10130944), (4, 5065472), (8, 2532736), (16, 1266368), (32, 633184), (47, 431104), (64, 316592), (94, 215552), (128, 158296), (188, 107776), (256, 79148), (376, 53888), (421, 48128), (512, 39574), (752, 26944), (842, 24064), (1024, 19787), (1504, 13472), (1684, 12032), (3008, 6736), (3368, 6016)]