13638400

素因数分解:

$2^8\times 5^2\times {\mathrm{2131}}^1$

素因数の和:2157

約数の個数: 54

約数和(自身を含む): 33773012

約数和(自身を除く): 20134612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 2131, 3200, 4262, 6400, 8524, 10655, 17048, 21310, 34096, 42620, 53275, 68192, 85240, 106550, 136384, 170480, 213100, 272768, 340960, 426200, 545536, 681920, 852400, 1363840, 1704800, 2727680, 3409600, 6819200, 13638400]

約数ペア:

[(1, 13638400), (2, 6819200), (4, 3409600), (5, 2727680), (8, 1704800), (10, 1363840), (16, 852400), (20, 681920), (25, 545536), (32, 426200), (40, 340960), (50, 272768), (64, 213100), (80, 170480), (100, 136384), (128, 106550), (160, 85240), (200, 68192), (256, 53275), (320, 42620), (400, 34096), (640, 21310), (800, 17048), (1280, 10655), (1600, 8524), (2131, 6400), (3200, 4262)]