2168080

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:715

約数の個数: 40

約数和(自身を含む): 5171544

約数和(自身を除く): 3003464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 661, 820, 1322, 1640, 2644, 3280, 3305, 5288, 6610, 10576, 13220, 26440, 27101, 52880, 54202, 108404, 135505, 216808, 271010, 433616, 542020, 1084040, 2168080]

約数ペア:

[(1, 2168080), (2, 1084040), (4, 542020), (5, 433616), (8, 271010), (10, 216808), (16, 135505), (20, 108404), (40, 54202), (41, 52880), (80, 27101), (82, 26440), (164, 13220), (205, 10576), (328, 6610), (410, 5288), (656, 3305), (661, 3280), (820, 2644), (1322, 1640)]