18025520

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1621}}^1$

素因数の和:1773

約数の個数: 40

約数和(自身を含む): 42236880

約数和(自身を除く): 24211360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 1621, 2224, 2780, 3242, 5560, 6484, 8105, 11120, 12968, 16210, 25936, 32420, 64840, 129680, 225319, 450638, 901276, 1126595, 1802552, 2253190, 3605104, 4506380, 9012760, 18025520]

約数ペア:

[(1, 18025520), (2, 9012760), (4, 4506380), (5, 3605104), (8, 2253190), (10, 1802552), (16, 1126595), (20, 901276), (40, 450638), (80, 225319), (139, 129680), (278, 64840), (556, 32420), (695, 25936), (1112, 16210), (1390, 12968), (1621, 11120), (2224, 8105), (2780, 6484), (3242, 5560)]