399574960

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{35933}}^1$

素因数の和:36085

約数の個数: 40

約数和(自身を含む): 935721360

約数和(自身を除く): 536146400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 35933, 71866, 143732, 179665, 287464, 359330, 574928, 718660, 1437320, 2874640, 4994687, 9989374, 19978748, 24973435, 39957496, 49946870, 79914992, 99893740, 199787480, 399574960]

約数ペア:

[(1, 399574960), (2, 199787480), (4, 99893740), (5, 79914992), (8, 49946870), (10, 39957496), (16, 24973435), (20, 19978748), (40, 9989374), (80, 4994687), (139, 2874640), (278, 1437320), (556, 718660), (695, 574928), (1112, 359330), (1390, 287464), (2224, 179665), (2780, 143732), (5560, 71866), (11120, 35933)]