1810020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 5136768

約数和(自身を除く): 3326748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 311, 388, 485, 582, 622, 933, 970, 1164, 1244, 1455, 1555, 1866, 1940, 2910, 3110, 3732, 4665, 5820, 6220, 9330, 18660, 30167, 60334, 90501, 120668, 150835, 181002, 301670, 362004, 452505, 603340, 905010, 1810020]

約数ペア:

[(1, 1810020), (2, 905010), (3, 603340), (4, 452505), (5, 362004), (6, 301670), (10, 181002), (12, 150835), (15, 120668), (20, 90501), (30, 60334), (60, 30167), (97, 18660), (194, 9330), (291, 6220), (311, 5820), (388, 4665), (485, 3732), (582, 3110), (622, 2910), (933, 1940), (970, 1866), (1164, 1555), (1244, 1455)]