25966120

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 60963840

約数和(自身を除く): 34997720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 223, 284, 328, 355, 410, 446, 568, 710, 820, 892, 1115, 1420, 1640, 1784, 2230, 2840, 2911, 4460, 5822, 8920, 9143, 11644, 14555, 15833, 18286, 23288, 29110, 31666, 36572, 45715, 58220, 63332, 73144, 79165, 91430, 116440, 126664, 158330, 182860, 316660, 365720, 633320, 649153, 1298306, 2596612, 3245765, 5193224, 6491530, 12983060, 25966120]

約数ペア:

[(1, 25966120), (2, 12983060), (4, 6491530), (5, 5193224), (8, 3245765), (10, 2596612), (20, 1298306), (40, 649153), (41, 633320), (71, 365720), (82, 316660), (142, 182860), (164, 158330), (205, 126664), (223, 116440), (284, 91430), (328, 79165), (355, 73144), (410, 63332), (446, 58220), (568, 45715), (710, 36572), (820, 31666), (892, 29110), (1115, 23288), (1420, 18286), (1640, 15833), (1784, 14555), (2230, 11644), (2840, 9143), (2911, 8920), (4460, 5822)]