255247974

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{1553}}^1$

素因数の和:1981

約数の個数: 48

約数和(自身を含む): 578908512

約数和(自身を除く): 323660538

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 397, 414, 794, 1191, 1553, 2382, 3106, 3573, 4659, 7146, 9131, 9318, 13977, 18262, 27393, 27954, 35719, 54786, 71438, 82179, 107157, 164358, 214314, 321471, 616541, 642942, 1233082, 1849623, 3699246, 5548869, 11097738, 14180443, 28360886, 42541329, 85082658, 127623987, 255247974]

約数ペア:

[(1, 255247974), (2, 127623987), (3, 85082658), (6, 42541329), (9, 28360886), (18, 14180443), (23, 11097738), (46, 5548869), (69, 3699246), (138, 1849623), (207, 1233082), (397, 642942), (414, 616541), (794, 321471), (1191, 214314), (1553, 164358), (2382, 107157), (3106, 82179), (3573, 71438), (4659, 54786), (7146, 35719), (9131, 27954), (9318, 27393), (13977, 18262)]