51931100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{929}}^1$

素因数の和:999

約数の個数: 72

約数和(自身を含む): 124314960

約数和(自身を除く): 72383860

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 172, 215, 260, 325, 430, 559, 650, 860, 929, 1075, 1118, 1300, 1858, 2150, 2236, 2795, 3716, 4300, 4645, 5590, 9290, 11180, 12077, 13975, 18580, 23225, 24154, 27950, 39947, 46450, 48308, 55900, 60385, 79894, 92900, 120770, 159788, 199735, 241540, 301925, 399470, 519311, 603850, 798940, 998675, 1038622, 1207700, 1997350, 2077244, 2596555, 3994700, 5193110, 10386220, 12982775, 25965550, 51931100]

約数ペア:

[(1, 51931100), (2, 25965550), (4, 12982775), (5, 10386220), (10, 5193110), (13, 3994700), (20, 2596555), (25, 2077244), (26, 1997350), (43, 1207700), (50, 1038622), (52, 998675), (65, 798940), (86, 603850), (100, 519311), (130, 399470), (172, 301925), (215, 241540), (260, 199735), (325, 159788), (430, 120770), (559, 92900), (650, 79894), (860, 60385), (929, 55900), (1075, 48308), (1118, 46450), (1300, 39947), (1858, 27950), (2150, 24154), (2236, 23225), (2795, 18580), (3716, 13975), (4300, 12077), (4645, 11180), (5590, 9290)]