51163280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{433}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 136907904

約数和(自身を除く): 85744624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 211, 280, 422, 433, 560, 844, 866, 1055, 1477, 1688, 1732, 2110, 2165, 2954, 3031, 3376, 3464, 4220, 4330, 5908, 6062, 6928, 7385, 8440, 8660, 11816, 12124, 14770, 15155, 16880, 17320, 23632, 24248, 29540, 30310, 34640, 48496, 59080, 60620, 91363, 118160, 121240, 182726, 242480, 365452, 456815, 639541, 730904, 913630, 1279082, 1461808, 1827260, 2558164, 3197705, 3654520, 5116328, 6395410, 7309040, 10232656, 12790820, 25581640, 51163280]

約数ペア:

[(1, 51163280), (2, 25581640), (4, 12790820), (5, 10232656), (7, 7309040), (8, 6395410), (10, 5116328), (14, 3654520), (16, 3197705), (20, 2558164), (28, 1827260), (35, 1461808), (40, 1279082), (56, 913630), (70, 730904), (80, 639541), (112, 456815), (140, 365452), (211, 242480), (280, 182726), (422, 121240), (433, 118160), (560, 91363), (844, 60620), (866, 59080), (1055, 48496), (1477, 34640), (1688, 30310), (1732, 29540), (2110, 24248), (2165, 23632), (2954, 17320), (3031, 16880), (3376, 15155), (3464, 14770), (4220, 12124), (4330, 11816), (5908, 8660), (6062, 8440), (6928, 7385)]