51368080

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15661}}^1$

素因数の和:15715

約数の個数: 40

約数和(自身を含む): 122351544

約数和(自身を除く): 70983464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 15661, 31322, 62644, 78305, 125288, 156610, 250576, 313220, 626440, 642101, 1252880, 1284202, 2568404, 3210505, 5136808, 6421010, 10273616, 12842020, 25684040, 51368080]

約数ペア:

[(1, 51368080), (2, 25684040), (4, 12842020), (5, 10273616), (8, 6421010), (10, 5136808), (16, 3210505), (20, 2568404), (40, 1284202), (41, 1252880), (80, 642101), (82, 626440), (164, 313220), (205, 250576), (328, 156610), (410, 125288), (656, 78305), (820, 62644), (1640, 31322), (3280, 15661)]