8021781127225

素因数分解:

$5^2\times {\mathrm{41}}^2\times {\mathrm{443}}^1\times {\mathrm{430883}}^1$

素因数の和:431418

約数の個数: 36

約数和(自身を含む): 10218574348848

約数和(自身を除く): 2196793221623

約数列:

[1, 5, 25, 41, 205, 443, 1025, 1681, 2215, 8405, 11075, 18163, 42025, 90815, 430883, 454075, 744683, 2154415, 3723415, 10772075, 17666203, 18617075, 88331015, 190881169, 441655075, 724314323, 954405845, 3621571615, 4772029225, 7826127929, 18107858075, 39130639645, 195653198225, 320871245089, 1604356225445, 8021781127225]

約数ペア:

[(1, 8021781127225), (5, 1604356225445), (25, 320871245089), (41, 195653198225), (205, 39130639645), (443, 18107858075), (1025, 7826127929), (1681, 4772029225), (2215, 3621571615), (8405, 954405845), (11075, 724314323), (18163, 441655075), (42025, 190881169), (90815, 88331015), (430883, 18617075), (454075, 17666203), (744683, 10772075), (2154415, 3723415)]