25581640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{433}}^1$

素因数の和:662

約数の個数: 64

約数和(自身を含む): 66245760

約数和(自身を除く): 40664120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 211, 280, 422, 433, 844, 866, 1055, 1477, 1688, 1732, 2110, 2165, 2954, 3031, 3464, 4220, 4330, 5908, 6062, 7385, 8440, 8660, 11816, 12124, 14770, 15155, 17320, 24248, 29540, 30310, 59080, 60620, 91363, 121240, 182726, 365452, 456815, 639541, 730904, 913630, 1279082, 1827260, 2558164, 3197705, 3654520, 5116328, 6395410, 12790820, 25581640]

約数ペア:

[(1, 25581640), (2, 12790820), (4, 6395410), (5, 5116328), (7, 3654520), (8, 3197705), (10, 2558164), (14, 1827260), (20, 1279082), (28, 913630), (35, 730904), (40, 639541), (56, 456815), (70, 365452), (140, 182726), (211, 121240), (280, 91363), (422, 60620), (433, 59080), (844, 30310), (866, 29540), (1055, 24248), (1477, 17320), (1688, 15155), (1732, 14770), (2110, 12124), (2165, 11816), (2954, 8660), (3031, 8440), (3464, 7385), (4220, 6062), (4330, 5908)]