2039989980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{21397}}^1$

素因数の和:21643

約数の個数: 96

約数和(自身を含む): 6557031936

約数和(自身を除く): 4517041956

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 227, 420, 454, 681, 908, 1135, 1362, 1589, 2270, 2724, 3178, 3405, 4540, 4767, 6356, 6810, 7945, 9534, 13620, 15890, 19068, 21397, 23835, 31780, 42794, 47670, 64191, 85588, 95340, 106985, 128382, 149779, 213970, 256764, 299558, 320955, 427940, 449337, 599116, 641910, 748895, 898674, 1283820, 1497790, 1797348, 2246685, 2995580, 4493370, 4857119, 8986740, 9714238, 14571357, 19428476, 24285595, 29142714, 33999833, 48571190, 58285428, 67999666, 72856785, 97142380, 101999499, 135999332, 145713570, 169999165, 203998998, 291427140, 339998330, 407997996, 509997495, 679996660, 1019994990, 2039989980]

約数ペア:

[(1, 2039989980), (2, 1019994990), (3, 679996660), (4, 509997495), (5, 407997996), (6, 339998330), (7, 291427140), (10, 203998998), (12, 169999165), (14, 145713570), (15, 135999332), (20, 101999499), (21, 97142380), (28, 72856785), (30, 67999666), (35, 58285428), (42, 48571190), (60, 33999833), (70, 29142714), (84, 24285595), (105, 19428476), (140, 14571357), (210, 9714238), (227, 8986740), (420, 4857119), (454, 4493370), (681, 2995580), (908, 2246685), (1135, 1797348), (1362, 1497790), (1589, 1283820), (2270, 898674), (2724, 748895), (3178, 641910), (3405, 599116), (4540, 449337), (4767, 427940), (6356, 320955), (6810, 299558), (7945, 256764), (9534, 213970), (13620, 149779), (15890, 128382), (19068, 106985), (21397, 95340), (23835, 85588), (31780, 64191), (42794, 47670)]