661331125

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1237}}^1$

素因数の和:1319

約数の個数: 64

約数和(自身を含む): 1038256128

約数和(自身を除く): 376925003

約数列:

[1, 5, 7, 13, 25, 35, 47, 65, 91, 125, 175, 235, 325, 329, 455, 611, 875, 1175, 1237, 1625, 1645, 2275, 3055, 4277, 5875, 6185, 8225, 8659, 11375, 15275, 16081, 21385, 30925, 41125, 43295, 58139, 76375, 80405, 106925, 112567, 154625, 216475, 290695, 402025, 406973, 534625, 562835, 755807, 1082375, 1453475, 2010125, 2034865, 2814175, 3779035, 5290649, 7267375, 10174325, 14070875, 18895175, 26453245, 50871625, 94475875, 132266225, 661331125]

約数ペア:

[(1, 661331125), (5, 132266225), (7, 94475875), (13, 50871625), (25, 26453245), (35, 18895175), (47, 14070875), (65, 10174325), (91, 7267375), (125, 5290649), (175, 3779035), (235, 2814175), (325, 2034865), (329, 2010125), (455, 1453475), (611, 1082375), (875, 755807), (1175, 562835), (1237, 534625), (1625, 406973), (1645, 402025), (2275, 290695), (3055, 216475), (4277, 154625), (5875, 112567), (6185, 106925), (8225, 80405), (8659, 76375), (11375, 58139), (15275, 43295), (16081, 41125), (21385, 30925)]