26315440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:238

約数の個数: 80

約数和(自身を含む): 64120896

約数和(自身を除く): 37805456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 71, 80, 82, 113, 142, 164, 205, 226, 284, 328, 355, 410, 452, 565, 568, 656, 710, 820, 904, 1130, 1136, 1420, 1640, 1808, 2260, 2840, 2911, 3280, 4520, 4633, 5680, 5822, 8023, 9040, 9266, 11644, 14555, 16046, 18532, 23165, 23288, 29110, 32092, 37064, 40115, 46330, 46576, 58220, 64184, 74128, 80230, 92660, 116440, 128368, 160460, 185320, 232880, 320920, 328943, 370640, 641840, 657886, 1315772, 1644715, 2631544, 3289430, 5263088, 6578860, 13157720, 26315440]

約数ペア:

[(1, 26315440), (2, 13157720), (4, 6578860), (5, 5263088), (8, 3289430), (10, 2631544), (16, 1644715), (20, 1315772), (40, 657886), (41, 641840), (71, 370640), (80, 328943), (82, 320920), (113, 232880), (142, 185320), (164, 160460), (205, 128368), (226, 116440), (284, 92660), (328, 80230), (355, 74128), (410, 64184), (452, 58220), (565, 46576), (568, 46330), (656, 40115), (710, 37064), (820, 32092), (904, 29110), (1130, 23288), (1136, 23165), (1420, 18532), (1640, 16046), (1808, 14555), (2260, 11644), (2840, 9266), (2911, 9040), (3280, 8023), (4520, 5822), (4633, 5680)]