25486000

素因数分解:

$2^4\times 5^3\times {\mathrm{12743}}^1$

素因数の和:12766

約数の個数: 40

約数和(自身を含む): 61629984

約数和(自身を除く): 36143984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 12743, 25486, 50972, 63715, 101944, 127430, 203888, 254860, 318575, 509720, 637150, 1019440, 1274300, 1592875, 2548600, 3185750, 5097200, 6371500, 12743000, 25486000]

約数ペア:

[(1, 25486000), (2, 12743000), (4, 6371500), (5, 5097200), (8, 3185750), (10, 2548600), (16, 1592875), (20, 1274300), (25, 1019440), (40, 637150), (50, 509720), (80, 318575), (100, 254860), (125, 203888), (200, 127430), (250, 101944), (400, 63715), (500, 50972), (1000, 25486), (2000, 12743)]