2021165960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{983}}^1\times {\mathrm{4673}}^1$

素因数の和:5678

約数の個数: 64

約数和(自身を含む): 4967153280

約数和(自身を除く): 2945987320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 983, 1966, 3932, 4673, 4915, 7864, 9346, 9830, 10813, 18692, 19660, 21626, 23365, 37384, 39320, 43252, 46730, 51403, 54065, 86504, 93460, 102806, 108130, 186920, 205612, 216260, 257015, 411224, 432520, 514030, 1028060, 2056120, 4593559, 9187118, 18374236, 22967795, 36748472, 45935590, 50529149, 91871180, 101058298, 183742360, 202116596, 252645745, 404233192, 505291490, 1010582980, 2021165960]

約数ペア:

[(1, 2021165960), (2, 1010582980), (4, 505291490), (5, 404233192), (8, 252645745), (10, 202116596), (11, 183742360), (20, 101058298), (22, 91871180), (40, 50529149), (44, 45935590), (55, 36748472), (88, 22967795), (110, 18374236), (220, 9187118), (440, 4593559), (983, 2056120), (1966, 1028060), (3932, 514030), (4673, 432520), (4915, 411224), (7864, 257015), (9346, 216260), (9830, 205612), (10813, 186920), (18692, 108130), (19660, 102806), (21626, 93460), (23365, 86504), (37384, 54065), (39320, 51403), (43252, 46730)]