20131177900

素因数分解:

$2^2\times 5^2\times {\mathrm{389}}^1\times {\mathrm{517511}}^1$

素因数の和:517914

約数の個数: 36

約数和(自身を含む): 43797040560

約数和(自身を除く): 23665862660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 389, 778, 1556, 1945, 3890, 7780, 9725, 19450, 38900, 517511, 1035022, 2070044, 2587555, 5175110, 10350220, 12937775, 25875550, 51751100, 201311779, 402623558, 805247116, 1006558895, 2013117790, 4026235580, 5032794475, 10065588950, 20131177900]

約数ペア:

[(1, 20131177900), (2, 10065588950), (4, 5032794475), (5, 4026235580), (10, 2013117790), (20, 1006558895), (25, 805247116), (50, 402623558), (100, 201311779), (389, 51751100), (778, 25875550), (1556, 12937775), (1945, 10350220), (3890, 5175110), (7780, 2587555), (9725, 2070044), (19450, 1035022), (38900, 517511)]