2005307540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{78887}}^1$

素因数の和:78968

約数の個数: 48

約数和(自身を含む): 4453069824

約数和(自身を除く): 2447762284

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1271, 2542, 5084, 6355, 12710, 25420, 78887, 157774, 315548, 394435, 788870, 1577740, 2445497, 3234367, 4890994, 6468734, 9781988, 12227485, 12937468, 16171835, 24454970, 32343670, 48909940, 64687340, 100265377, 200530754, 401061508, 501326885, 1002653770, 2005307540]

約数ペア:

[(1, 2005307540), (2, 1002653770), (4, 501326885), (5, 401061508), (10, 200530754), (20, 100265377), (31, 64687340), (41, 48909940), (62, 32343670), (82, 24454970), (124, 16171835), (155, 12937468), (164, 12227485), (205, 9781988), (310, 6468734), (410, 4890994), (620, 3234367), (820, 2445497), (1271, 1577740), (2542, 788870), (5084, 394435), (6355, 315548), (12710, 157774), (25420, 78887)]