261129040

素因数分解:

$2^4\times 5^1\times {\mathrm{911}}^1\times {\mathrm{3583}}^1$

素因数の和:4507

約数の個数: 40

約数和(自身を含む): 607961088

約数和(自身を除く): 346832048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 911, 1822, 3583, 3644, 4555, 7166, 7288, 9110, 14332, 14576, 17915, 18220, 28664, 35830, 36440, 57328, 71660, 72880, 143320, 286640, 3264113, 6528226, 13056452, 16320565, 26112904, 32641130, 52225808, 65282260, 130564520, 261129040]

約数ペア:

[(1, 261129040), (2, 130564520), (4, 65282260), (5, 52225808), (8, 32641130), (10, 26112904), (16, 16320565), (20, 13056452), (40, 6528226), (80, 3264113), (911, 286640), (1822, 143320), (3583, 72880), (3644, 71660), (4555, 57328), (7166, 36440), (7288, 35830), (9110, 28664), (14332, 18220), (14576, 17915)]