19377820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12583}}^1$

素因数の和:12610

約数の個数: 48

約数和(自身を含む): 50738688

約数和(自身を除く): 31360868

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12583, 25166, 50332, 62915, 88081, 125830, 138413, 176162, 251660, 276826, 352324, 440405, 553652, 692065, 880810, 968891, 1384130, 1761620, 1937782, 2768260, 3875564, 4844455, 9688910, 19377820]

約数ペア:

[(1, 19377820), (2, 9688910), (4, 4844455), (5, 3875564), (7, 2768260), (10, 1937782), (11, 1761620), (14, 1384130), (20, 968891), (22, 880810), (28, 692065), (35, 553652), (44, 440405), (55, 352324), (70, 276826), (77, 251660), (110, 176162), (140, 138413), (154, 125830), (220, 88081), (308, 62915), (385, 50332), (770, 25166), (1540, 12583)]