19801920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{20627}}^1$

素因数の和:20647

約数の個数: 56

約数和(自身を含む): 62874144

約数和(自身を除く): 43072224

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, 160, 192, 240, 320, 480, 960, 20627, 41254, 61881, 82508, 103135, 123762, 165016, 206270, 247524, 309405, 330032, 412540, 495048, 618810, 660064, 825080, 990096, 1237620, 1320128, 1650160, 1980192, 2475240, 3300320, 3960384, 4950480, 6600640, 9900960, 19801920]

約数ペア:

[(1, 19801920), (2, 9900960), (3, 6600640), (4, 4950480), (5, 3960384), (6, 3300320), (8, 2475240), (10, 1980192), (12, 1650160), (15, 1320128), (16, 1237620), (20, 990096), (24, 825080), (30, 660064), (32, 618810), (40, 495048), (48, 412540), (60, 330032), (64, 309405), (80, 247524), (96, 206270), (120, 165016), (160, 123762), (192, 103135), (240, 82508), (320, 61881), (480, 41254), (960, 20627)]