20001455895

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{313}}^1\times {\mathrm{11801}}^1$

素因数の和:12160

約数の個数: 48

約数和(自身を含む): 33886091232

約数和(自身を除く): 13884635337

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 313, 361, 939, 1083, 1565, 1805, 4695, 5415, 5947, 11801, 17841, 29735, 35403, 59005, 89205, 112993, 177015, 224219, 338979, 564965, 672657, 1121095, 1694895, 3363285, 3693713, 4260161, 11081139, 12780483, 18468565, 21300805, 55405695, 63902415, 70180547, 210541641, 350902735, 1052708205, 1333430393, 4000291179, 6667151965, 20001455895]

約数ペア:

[(1, 20001455895), (3, 6667151965), (5, 4000291179), (15, 1333430393), (19, 1052708205), (57, 350902735), (95, 210541641), (285, 70180547), (313, 63902415), (361, 55405695), (939, 21300805), (1083, 18468565), (1565, 12780483), (1805, 11081139), (4695, 4260161), (5415, 3693713), (5947, 3363285), (11801, 1694895), (17841, 1121095), (29735, 672657), (35403, 564965), (59005, 338979), (89205, 224219), (112993, 177015)]