1920

素因数分解:

$2^7\times 3^1\times 5^1$

素因数の和:22

約数の個数: 32

約数和(自身を含む): 6120

約数和(自身を除く): 4200

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]

約数ペア:

[(1, 1920), (2, 960), (3, 640), (4, 480), (5, 384), (6, 320), (8, 240), (10, 192), (12, 160), (15, 128), (16, 120), (20, 96), (24, 80), (30, 64), (32, 60), (40, 48)]