25889900

素因数分解:

$2^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{1301}}^1$

素因数の和:1514

約数の個数: 36

約数和(自身を含む): 56506800

約数和(自身を除く): 30616900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199, 398, 796, 995, 1301, 1990, 2602, 3980, 4975, 5204, 6505, 9950, 13010, 19900, 26020, 32525, 65050, 130100, 258899, 517798, 1035596, 1294495, 2588990, 5177980, 6472475, 12944950, 25889900]

約数ペア:

[(1, 25889900), (2, 12944950), (4, 6472475), (5, 5177980), (10, 2588990), (20, 1294495), (25, 1035596), (50, 517798), (100, 258899), (199, 130100), (398, 65050), (796, 32525), (995, 26020), (1301, 19900), (1990, 13010), (2602, 9950), (3980, 6505), (4975, 5204)]