20380412

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1163}}^1$

素因数の和:1517

約数の個数: 24

約数和(自身を含む): 38556336

約数和(自身を除く): 18175924

約数列:

[1, 2, 4, 13, 26, 52, 337, 674, 1163, 1348, 2326, 4381, 4652, 8762, 15119, 17524, 30238, 60476, 391931, 783862, 1567724, 5095103, 10190206, 20380412]

約数ペア:

[(1, 20380412), (2, 10190206), (4, 5095103), (13, 1567724), (26, 783862), (52, 391931), (337, 60476), (674, 30238), (1163, 17524), (1348, 15119), (2326, 8762), (4381, 4652)]