20393984

素因数分解:

$2^{12}\times {\mathrm{13}}^1\times {\mathrm{383}}^1$

素因数の和:420

約数の個数: 52

約数和(自身を含む): 44034816

約数和(自身を除く): 23640832

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 383, 416, 512, 766, 832, 1024, 1532, 1664, 2048, 3064, 3328, 4096, 4979, 6128, 6656, 9958, 12256, 13312, 19916, 24512, 26624, 39832, 49024, 53248, 79664, 98048, 159328, 196096, 318656, 392192, 637312, 784384, 1274624, 1568768, 2549248, 5098496, 10196992, 20393984]

約数ペア:

[(1, 20393984), (2, 10196992), (4, 5098496), (8, 2549248), (13, 1568768), (16, 1274624), (26, 784384), (32, 637312), (52, 392192), (64, 318656), (104, 196096), (128, 159328), (208, 98048), (256, 79664), (383, 53248), (416, 49024), (512, 39832), (766, 26624), (832, 24512), (1024, 19916), (1532, 13312), (1664, 12256), (2048, 9958), (3064, 6656), (3328, 6128), (4096, 4979)]