20781646208

素因数分解:

$2^7\times {\mathrm{67}}^1\times {\mathrm{2423233}}^1$

素因数の和:2423314

約数の個数: 32

約数和(自身を含む): 42018877560

約数和(自身を除く): 21237231352

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 268, 536, 1072, 2144, 4288, 8576, 2423233, 4846466, 9692932, 19385864, 38771728, 77543456, 155086912, 162356611, 310173824, 324713222, 649426444, 1298852888, 2597705776, 5195411552, 10390823104, 20781646208]

約数ペア:

[(1, 20781646208), (2, 10390823104), (4, 5195411552), (8, 2597705776), (16, 1298852888), (32, 649426444), (64, 324713222), (67, 310173824), (128, 162356611), (134, 155086912), (268, 77543456), (536, 38771728), (1072, 19385864), (2144, 9692932), (4288, 4846466), (8576, 2423233)]