2109400

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 5022000

約数和(自身を除く): 2912600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 199, 200, 212, 265, 398, 424, 530, 796, 995, 1060, 1325, 1592, 1990, 2120, 2650, 3980, 4975, 5300, 7960, 9950, 10547, 10600, 19900, 21094, 39800, 42188, 52735, 84376, 105470, 210940, 263675, 421880, 527350, 1054700, 2109400]

約数ペア:

[(1, 2109400), (2, 1054700), (4, 527350), (5, 421880), (8, 263675), (10, 210940), (20, 105470), (25, 84376), (40, 52735), (50, 42188), (53, 39800), (100, 21094), (106, 19900), (199, 10600), (200, 10547), (212, 9950), (265, 7960), (398, 5300), (424, 4975), (530, 3980), (796, 2650), (995, 2120), (1060, 1990), (1325, 1592)]