280963480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{7219}}^1$

素因数の和:7376

約数の個数: 64

約数和(自身を含む): 727776000

約数和(自身を除く): 446812520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2780, 3892, 4865, 5560, 7219, 7784, 9730, 14438, 19460, 28876, 36095, 38920, 50533, 57752, 72190, 101066, 144380, 202132, 252665, 288760, 404264, 505330, 1003441, 1010660, 2006882, 2021320, 4013764, 5017205, 7024087, 8027528, 10034410, 14048174, 20068820, 28096348, 35120435, 40137640, 56192696, 70240870, 140481740, 280963480]

約数ペア:

[(1, 280963480), (2, 140481740), (4, 70240870), (5, 56192696), (7, 40137640), (8, 35120435), (10, 28096348), (14, 20068820), (20, 14048174), (28, 10034410), (35, 8027528), (40, 7024087), (56, 5017205), (70, 4013764), (139, 2021320), (140, 2006882), (278, 1010660), (280, 1003441), (556, 505330), (695, 404264), (973, 288760), (1112, 252665), (1390, 202132), (1946, 144380), (2780, 101066), (3892, 72190), (4865, 57752), (5560, 50533), (7219, 38920), (7784, 36095), (9730, 28876), (14438, 19460)]