20101616

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{281}}^1$

素因数の和:569

約数の個数: 40

約数和(自身を含む): 41541984

約数和(自身を除く): 21440368

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 263, 272, 281, 526, 562, 1052, 1124, 2104, 2248, 4208, 4471, 4496, 4777, 8942, 9554, 17884, 19108, 35768, 38216, 71536, 73903, 76432, 147806, 295612, 591224, 1182448, 1256351, 2512702, 5025404, 10050808, 20101616]

約数ペア:

[(1, 20101616), (2, 10050808), (4, 5025404), (8, 2512702), (16, 1256351), (17, 1182448), (34, 591224), (68, 295612), (136, 147806), (263, 76432), (272, 73903), (281, 71536), (526, 38216), (562, 35768), (1052, 19108), (1124, 17884), (2104, 9554), (2248, 8942), (4208, 4777), (4471, 4496)]