261805356

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{487}}^1$

素因数の和:743

約数の個数: 72

約数和(自身を含む): 674113440

約数和(自身を除く): 412308084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 137, 218, 274, 327, 411, 436, 487, 548, 654, 822, 974, 981, 1233, 1308, 1461, 1644, 1948, 1962, 2466, 2922, 3924, 4383, 4932, 5844, 8766, 14933, 17532, 29866, 44799, 53083, 59732, 66719, 89598, 106166, 133438, 134397, 159249, 179196, 200157, 212332, 266876, 268794, 318498, 400314, 477747, 537588, 600471, 636996, 800628, 955494, 1200942, 1910988, 2401884, 7272371, 14544742, 21817113, 29089484, 43634226, 65451339, 87268452, 130902678, 261805356]

約数ペア:

[(1, 261805356), (2, 130902678), (3, 87268452), (4, 65451339), (6, 43634226), (9, 29089484), (12, 21817113), (18, 14544742), (36, 7272371), (109, 2401884), (137, 1910988), (218, 1200942), (274, 955494), (327, 800628), (411, 636996), (436, 600471), (487, 537588), (548, 477747), (654, 400314), (822, 318498), (974, 268794), (981, 266876), (1233, 212332), (1308, 200157), (1461, 179196), (1644, 159249), (1948, 134397), (1962, 133438), (2466, 106166), (2922, 89598), (3924, 66719), (4383, 59732), (4932, 53083), (5844, 44799), (8766, 29866), (14933, 17532)]