2004227720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1787}}^1\times {\mathrm{2549}}^1$

素因数の和:4358

約数の個数: 64

約数和(自身を含む): 4924152000

約数和(自身を除く): 2919924280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1787, 2549, 3574, 5098, 7148, 8935, 10196, 12745, 14296, 17870, 19657, 20392, 25490, 28039, 35740, 39314, 50980, 56078, 71480, 78628, 98285, 101960, 112156, 140195, 157256, 196570, 224312, 280390, 393140, 560780, 786280, 1121560, 4555063, 9110126, 18220252, 22775315, 36440504, 45550630, 50105693, 91101260, 100211386, 182202520, 200422772, 250528465, 400845544, 501056930, 1002113860, 2004227720]

約数ペア:

[(1, 2004227720), (2, 1002113860), (4, 501056930), (5, 400845544), (8, 250528465), (10, 200422772), (11, 182202520), (20, 100211386), (22, 91101260), (40, 50105693), (44, 45550630), (55, 36440504), (88, 22775315), (110, 18220252), (220, 9110126), (440, 4555063), (1787, 1121560), (2549, 786280), (3574, 560780), (5098, 393140), (7148, 280390), (8935, 224312), (10196, 196570), (12745, 157256), (14296, 140195), (17870, 112156), (19657, 101960), (20392, 98285), (25490, 78628), (28039, 71480), (35740, 56078), (39314, 50980)]