201505520

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{18121}}^1$

素因数の和:18273

約数の個数: 40

約数和(自身を含む): 471896880

約数和(自身を除く): 270391360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 18121, 36242, 72484, 90605, 144968, 181210, 289936, 362420, 724840, 1449680, 2518819, 5037638, 10075276, 12594095, 20150552, 25188190, 40301104, 50376380, 100752760, 201505520]

約数ペア:

[(1, 201505520), (2, 100752760), (4, 50376380), (5, 40301104), (8, 25188190), (10, 20150552), (16, 12594095), (20, 10075276), (40, 5037638), (80, 2518819), (139, 1449680), (278, 724840), (556, 362420), (695, 289936), (1112, 181210), (1390, 144968), (2224, 90605), (2780, 72484), (5560, 36242), (11120, 18121)]