20645760

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10753}}^1$

素因数の和:10775

約数の個数: 64

約数和(自身を含む): 65814480

約数和(自身を除く): 45168720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 10753, 21506, 32259, 43012, 53765, 64518, 86024, 107530, 129036, 161295, 172048, 215060, 258072, 322590, 344096, 430120, 516144, 645180, 688192, 860240, 1032288, 1290360, 1376384, 1720480, 2064576, 2580720, 3440960, 4129152, 5161440, 6881920, 10322880, 20645760]

約数ペア:

[(1, 20645760), (2, 10322880), (3, 6881920), (4, 5161440), (5, 4129152), (6, 3440960), (8, 2580720), (10, 2064576), (12, 1720480), (15, 1376384), (16, 1290360), (20, 1032288), (24, 860240), (30, 688192), (32, 645180), (40, 516144), (48, 430120), (60, 344096), (64, 322590), (80, 258072), (96, 215060), (120, 172048), (128, 161295), (160, 129036), (192, 107530), (240, 86024), (320, 64518), (384, 53765), (480, 43012), (640, 32259), (960, 21506), (1920, 10753)]