18460660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{479}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 22181900

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 479, 820, 940, 958, 1916, 1927, 2395, 3854, 4790, 7708, 9580, 9635, 19270, 19639, 22513, 38540, 39278, 45026, 78556, 90052, 98195, 112565, 196390, 225130, 392780, 450260, 923033, 1846066, 3692132, 4615165, 9230330, 18460660]

約数ペア:

[(1, 18460660), (2, 9230330), (4, 4615165), (5, 3692132), (10, 1846066), (20, 923033), (41, 450260), (47, 392780), (82, 225130), (94, 196390), (164, 112565), (188, 98195), (205, 90052), (235, 78556), (410, 45026), (470, 39278), (479, 38540), (820, 22513), (940, 19639), (958, 19270), (1916, 9635), (1927, 9580), (2395, 7708), (3854, 4790)]