19863620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20269}}^1$

素因数の和:20292

約数の個数: 36

約数和(自身を含む): 48526380

約数和(自身を除く): 28662760

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20269, 40538, 81076, 101345, 141883, 202690, 283766, 405380, 567532, 709415, 993181, 1418830, 1986362, 2837660, 3972724, 4965905, 9931810, 19863620]

約数ペア:

[(1, 19863620), (2, 9931810), (4, 4965905), (5, 3972724), (7, 2837660), (10, 1986362), (14, 1418830), (20, 993181), (28, 709415), (35, 567532), (49, 405380), (70, 283766), (98, 202690), (140, 141883), (196, 101345), (245, 81076), (490, 40538), (980, 20269)]