20460728

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 19196872

約数列:

[1, 2, 4, 8, 59, 67, 118, 134, 236, 268, 472, 536, 647, 1294, 2588, 3953, 5176, 7906, 15812, 31624, 38173, 43349, 76346, 86698, 152692, 173396, 305384, 346792, 2557591, 5115182, 10230364, 20460728]

約数ペア:

[(1, 20460728), (2, 10230364), (4, 5115182), (8, 2557591), (59, 346792), (67, 305384), (118, 173396), (134, 152692), (236, 86698), (268, 76346), (472, 43349), (536, 38173), (647, 31624), (1294, 15812), (2588, 7906), (3953, 5176)]