78401680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{733}}^1$

素因数の和:944

約数の個数: 80

約数和(自身を含む): 209700864

約数和(自身を除く): 131299184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 191, 280, 382, 560, 733, 764, 955, 1337, 1466, 1528, 1910, 2674, 2932, 3056, 3665, 3820, 5131, 5348, 5864, 6685, 7330, 7640, 10262, 10696, 11728, 13370, 14660, 15280, 20524, 21392, 25655, 26740, 29320, 41048, 51310, 53480, 58640, 82096, 102620, 106960, 140003, 205240, 280006, 410480, 560012, 700015, 980021, 1120024, 1400030, 1960042, 2240048, 2800060, 3920084, 4900105, 5600120, 7840168, 9800210, 11200240, 15680336, 19600420, 39200840, 78401680]

約数ペア:

[(1, 78401680), (2, 39200840), (4, 19600420), (5, 15680336), (7, 11200240), (8, 9800210), (10, 7840168), (14, 5600120), (16, 4900105), (20, 3920084), (28, 2800060), (35, 2240048), (40, 1960042), (56, 1400030), (70, 1120024), (80, 980021), (112, 700015), (140, 560012), (191, 410480), (280, 280006), (382, 205240), (560, 140003), (733, 106960), (764, 102620), (955, 82096), (1337, 58640), (1466, 53480), (1528, 51310), (1910, 41048), (2674, 29320), (2932, 26740), (3056, 25655), (3665, 21392), (3820, 20524), (5131, 15280), (5348, 14660), (5864, 13370), (6685, 11728), (7330, 10696), (7640, 10262)]