20374744

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{479}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 41328000

約数和(自身を除く): 20953256

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 409, 479, 818, 958, 1636, 1916, 3272, 3832, 5317, 6227, 10634, 12454, 21268, 24908, 42536, 49816, 195911, 391822, 783644, 1567288, 2546843, 5093686, 10187372, 20374744]

約数ペア:

[(1, 20374744), (2, 10187372), (4, 5093686), (8, 2546843), (13, 1567288), (26, 783644), (52, 391822), (104, 195911), (409, 49816), (479, 42536), (818, 24908), (958, 21268), (1636, 12454), (1916, 10634), (3272, 6227), (3832, 5317)]