19081660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{929}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 43747200

約数和(自身を除く): 24665540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 929, 1027, 1580, 1858, 2054, 3716, 4108, 4645, 5135, 9290, 10270, 12077, 18580, 20540, 24154, 48308, 60385, 73391, 120770, 146782, 241540, 293564, 366955, 733910, 954083, 1467820, 1908166, 3816332, 4770415, 9540830, 19081660]

約数ペア:

[(1, 19081660), (2, 9540830), (4, 4770415), (5, 3816332), (10, 1908166), (13, 1467820), (20, 954083), (26, 733910), (52, 366955), (65, 293564), (79, 241540), (130, 146782), (158, 120770), (260, 73391), (316, 60385), (395, 48308), (790, 24154), (929, 20540), (1027, 18580), (1580, 12077), (1858, 10270), (2054, 9290), (3716, 5135), (4108, 4645)]