261569887760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79746917}}^1$

素因数の和:79746971

約数の個数: 40

約数和(自身を含む): 622982923416

約数和(自身を除く): 361413035656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 79746917, 159493834, 318987668, 398734585, 637975336, 797469170, 1275950672, 1594938340, 3189876680, 3269623597, 6379753360, 6539247194, 13078494388, 16348117985, 26156988776, 32696235970, 52313977552, 65392471940, 130784943880, 261569887760]

約数ペア:

[(1, 261569887760), (2, 130784943880), (4, 65392471940), (5, 52313977552), (8, 32696235970), (10, 26156988776), (16, 16348117985), (20, 13078494388), (40, 6539247194), (41, 6379753360), (80, 3269623597), (82, 3189876680), (164, 1594938340), (205, 1275950672), (328, 797469170), (410, 637975336), (656, 398734585), (820, 318987668), (1640, 159493834), (3280, 79746917)]