77517520

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6971}}^1$

素因数の和:7123

約数の個数: 40

約数和(自身を含む): 181550880

約数和(自身を除く): 104033360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 6971, 11120, 13942, 27884, 34855, 55768, 69710, 111536, 139420, 278840, 557680, 968969, 1937938, 3875876, 4844845, 7751752, 9689690, 15503504, 19379380, 38758760, 77517520]

約数ペア:

[(1, 77517520), (2, 38758760), (4, 19379380), (5, 15503504), (8, 9689690), (10, 7751752), (16, 4844845), (20, 3875876), (40, 1937938), (80, 968969), (139, 557680), (278, 278840), (556, 139420), (695, 111536), (1112, 69710), (1390, 55768), (2224, 34855), (2780, 27884), (5560, 13942), (6971, 11120)]