428920640

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9643}}^1$

素因数の和:9799

約数の個数: 56

約数和(自身を含む): 1028821920

約数和(自身を除く): 599901280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 556, 695, 1112, 1390, 2224, 2780, 4448, 5560, 8896, 9643, 11120, 19286, 22240, 38572, 44480, 48215, 77144, 96430, 154288, 192860, 308576, 385720, 617152, 771440, 1340377, 1542880, 2680754, 3085760, 5361508, 6701885, 10723016, 13403770, 21446032, 26807540, 42892064, 53615080, 85784128, 107230160, 214460320, 428920640]

約数ペア:

[(1, 428920640), (2, 214460320), (4, 107230160), (5, 85784128), (8, 53615080), (10, 42892064), (16, 26807540), (20, 21446032), (32, 13403770), (40, 10723016), (64, 6701885), (80, 5361508), (139, 3085760), (160, 2680754), (278, 1542880), (320, 1340377), (556, 771440), (695, 617152), (1112, 385720), (1390, 308576), (2224, 192860), (2780, 154288), (4448, 96430), (5560, 77144), (8896, 48215), (9643, 44480), (11120, 38572), (19286, 22240)]