289643560

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1\times {\mathrm{353}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 664854480

約数和(自身を除く): 375210920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 281, 292, 353, 365, 562, 584, 706, 730, 1124, 1405, 1412, 1460, 1765, 2248, 2810, 2824, 2920, 3530, 5620, 7060, 11240, 14120, 20513, 25769, 41026, 51538, 82052, 99193, 102565, 103076, 128845, 164104, 198386, 205130, 206152, 257690, 396772, 410260, 495965, 515380, 793544, 820520, 991930, 1030760, 1983860, 3967720, 7241089, 14482178, 28964356, 36205445, 57928712, 72410890, 144821780, 289643560]

約数ペア:

[(1, 289643560), (2, 144821780), (4, 72410890), (5, 57928712), (8, 36205445), (10, 28964356), (20, 14482178), (40, 7241089), (73, 3967720), (146, 1983860), (281, 1030760), (292, 991930), (353, 820520), (365, 793544), (562, 515380), (584, 495965), (706, 410260), (730, 396772), (1124, 257690), (1405, 206152), (1412, 205130), (1460, 198386), (1765, 164104), (2248, 128845), (2810, 103076), (2824, 102565), (2920, 99193), (3530, 82052), (5620, 51538), (7060, 41026), (11240, 25769), (14120, 20513)]