2039292440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1243471}}^1$

素因数の和:1243523

約数の個数: 32

約数和(自身を含む): 4700324160

約数和(自身を除く): 2661031720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1243471, 2486942, 4973884, 6217355, 9947768, 12434710, 24869420, 49738840, 50982311, 101964622, 203929244, 254911555, 407858488, 509823110, 1019646220, 2039292440]

約数ペア:

[(1, 2039292440), (2, 1019646220), (4, 509823110), (5, 407858488), (8, 254911555), (10, 203929244), (20, 101964622), (40, 50982311), (41, 49738840), (82, 24869420), (164, 12434710), (205, 9947768), (328, 6217355), (410, 4973884), (820, 2486942), (1640, 1243471)]