20167420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1583}}^1$

素因数の和:1619

約数の個数: 72

約数和(自身を含む): 53089344

約数和(自身を除く): 32921924

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1583, 1820, 2548, 3166, 3185, 6332, 6370, 7915, 11081, 12740, 15830, 20579, 22162, 31660, 41158, 44324, 55405, 77567, 82316, 102895, 110810, 144053, 155134, 205790, 221620, 288106, 310268, 387835, 411580, 576212, 720265, 775670, 1008371, 1440530, 1551340, 2016742, 2881060, 4033484, 5041855, 10083710, 20167420]

約数ペア:

[(1, 20167420), (2, 10083710), (4, 5041855), (5, 4033484), (7, 2881060), (10, 2016742), (13, 1551340), (14, 1440530), (20, 1008371), (26, 775670), (28, 720265), (35, 576212), (49, 411580), (52, 387835), (65, 310268), (70, 288106), (91, 221620), (98, 205790), (130, 155134), (140, 144053), (182, 110810), (196, 102895), (245, 82316), (260, 77567), (364, 55405), (455, 44324), (490, 41158), (637, 31660), (910, 22162), (980, 20579), (1274, 15830), (1583, 12740), (1820, 11081), (2548, 7915), (3166, 6370), (3185, 6332)]